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C#的一些问题。 [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] 的作用是什么? 谢谢。

[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]应该是托管字符串转为非托管字符串,字符串大小是260SHGetFileInfo()参数,应该是文件路径,文件属性,结构体(图标与文件名),文件大小,标识

triedto后面跟什么

Tried to后面跟do,tried是try的过去式,有固定搭配是try to do something是尝试做某事,尽力做某事,还有一个是try doing

temperedtopcoat美甲里是什么

涂封层。应该涂封层(应该是这个名,英文叫topcoat)按照顺序,应该是指甲修理好后先涂基层(basecoat)然后指甲油以及装饰,最后涂一层topcoatbasecoat富含维生素。美甲是一种对指(趾)甲进行装饰美化的工作,又称甲艺设计,具有表现形式多样化的特点。

请教turnedinto和turnedto的区别

你好turn to 虽然表示“变化”但是翻译需要,并非本质变化如:把频道A变成频道BTurn Channel A to Channel Bturn into 是完全变成另一个东西了如:Turn Water into Wine希望对你有帮助

usedto的一般疑问句的回答

Did he use to go there?Yes, he did.No, he didn"t.

yedtyjfyhfvhgdfrtd是什么意思

??

c#怎么让maskedTextBox1输入的数字保存在电脑里?

可以通过程序设计将文本框中的输入数据保存在本地的文件里(文本文件或XML)或是存在本地数据库(Access)中,应该很简单的!

在C#中如果maskedTextBox控件设置成时间掩码(年,月,日),如何进行两个这样的控件相加减

将两个maskedTextBox.Text 都转换为DateTime,然後在进行Datetime数据之间的相加减

c#中的maskedtextbox取值问题

百度 split 函数

MaskedTextBox的mask怎么设置能实现两位小数

MaskedTextBox本身功能比较有限,你可以实现KeyPress方法自定义处理,下面的方法能够限制只能录入两位小数位和自动在点号前加0 Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress Try "小数点.号前添0 If e.KeyChar = ". " And String.IsNullOrEmpty(TextBox1.Text) Then TextBox1.Text = "0 " & TextBox1.Text TextBox1.SelectionStart = TextBox1.Text.Length End If If Char.IsDigit(e.KeyChar) Or e.KeyChar = ". " Or e.KeyChar = Chr(8) Then If e.KeyChar = ". " And InStr(TextBox1.Text, ". ") > 0 Then e.Handled = True "不处理keypress Else e.Handled = False End If "限制录入两位小数 If Char.IsDigit(e.KeyChar) And InStr(TextBox1.Text, ". ") > 0 And TextBox1.Text.Length - InStr(TextBox1.Text, ". ") > 1 Then e.Handled = True "不处理keypress End If Else e.Handled = True End If Catch ex As Exception End Try End Sub 正则表达式的话,你可以用这个:d+(.d{1,2})?。基本够用了,构造完后可能出现“12.”和“.32”这样的数字,这个问题不大可以直接Parse的。希望对你有所帮助!

名词解释 maskedtextbox控件

掩码文本框:按你设定规则格式录入的,相当于自定义格式文本框,如某一位是数字,你是不能录入字母的。

usedto写作文加翻译

1. i used to 的英语作文及翻译 "Used to" is used when you want to make others know that a certain action happened frequently in the past, but not now (过去经常发生的事/习惯). For example, "I used to go to school at 7 a.m," an old man says. This means that when the man was in his childhood, he normally went to school (i.e. near everyday) at 7 a.m. However, now he doesn"t go to school any more. 2. used to写作文 Hope School Thanks to the Hope Project r, great changes have taken place in a country school, This school used to be called Lijiazhuang School. Most of its pupils left school because their families were too poor to pay for their education. The only unsafe schoolhouse had to be used as classrooms.And all the teachers shared one room. The playground was nothing but an open land. Things are different now. All the children who left school have e to continue their studies. In the schoolyard stands a o-storeyed teaching building. There are rooms for music, art and - puter teaching. The school is well equipped with sports goods. The Project benefits the school a great deal. For this reason, it was renamed Hope School. 希望学校 多亏希望工程的实施,一所乡村学校发生了巨大的变化。 以前这学校叫做李家庄小学。由于家庭困难交不起学费,大部分学生辍学了。那座仅有的危房要用来做教室,所有的教师们共住一间。操场上除了空地什么也没有。 现在情况可不同了乙辍学儿童都回校继续学习。一座双层的教学楼矗立在校园内,有音乐室、美术室,还有教学用的电脑室。学校的体育器材配备精良。 希望工程给李家庄小学带来了极大的好处,学校也因此改名为“希望小学”。 3. 用used to do 结构写一篇80字的英语作文 并翻译 My parents used to be peasants. They used to work day and night. They used to live a poor life, though. There used to be no enough food in my family. So my parents used to suffer from hunger often. When I was 6 years old, they used to tell me again and again to work hard. Now, everything has changed. My parents are not peasants any longer. They work in a factory making clothes. They can earn enough money to live happily. I am now a senior school student. I will keep on working hard.望采纳。 4. 用used to do 结构写一篇80字的英语作文 并翻译 My parents used to be peasants. They used to work day and night. They used to live a poor life, though. There used to be no enough food in my family. So my parents used to suffer from hunger often. When I was 6 years old, they used to tell me again and again to work hard. Now, everything has changed. My parents are not peasants any longer. They work in a factory making clothes. They can earn enough money to live happily. I am now a senior school student. I will keep on working hard. 望采纳 5. used to英语作文 Do you have any hobbies? If not ,what do you do in the holidays ? I have many hobbies .On weekdays ,when I study in school ,I used to play with my clas *** ates .Sometimes I play volleyball with them,sometimes I play football with them .I think playing football is very interesting and exciting .But when I get home ,I used to listening to music alone .Also I like reading story books.When I am not happy about something ,I used to draw some pictures though I am not good at drawing .On weekends ,there is no class ,I like shopping with my friends and my parents . Hobbies can make someone happy ,so I like them .And I have many hobbies.Do you agree with me?。 6. 改变自己的英语作文要翻译用 used to be rom my point of view, we should change ourselves when the situation can"t be changed any more. Difficulties hide in every corner of our life so we have to face them at times. But the problem is that we sometimes are not able to change the challenging situations at all as our abilities are limited. When it es, we"d better change our attitude towards these difficulties. Only in this way can we get rid of the tough surroundings and be happy. Something like that happened to me once. There was a time when I was laughed at by my clas *** ates while I was walking. I was puzzled so I asked them why they laughed at me. One of them told me that the way I walked was very strange and funny. I was sad but I just couldn"t change the way I walked. And the situation of being laughed at by those people didn"t stop. Therefore, I changed my attitude towards the incident. I ignored those ments on me and walked as I used to. The ments soon disappeared and I was so glad to have succeeded in the quiet war. So in my opinion, we should change ourselves first and then the situation can be changed at last. It is very difficult for us to change our surroundings but much easier to change ourselves. People around us will see our change, after which they may change their attitude toward us. 7. 寒假英语作文带翻译 题目 I used to be When I was in primary school,I used to go school at 8:00.But while I went to middle school,I need to get up earlier than before.Because my teacher asked me to go to school at7:30.After going to school,my clas *** ates and I need to do a lot of reading before our first class is beginning. Another important difference is I need to learn physics and chemistry now.These o courses are really very hard for me.But I believe,"No pain,no gain".I can learn it as good as my clas *** ates.我在小学的时候,我曾经在甫亥颠酵郯寂奠檄订漏8点去学校。但是当我去中学,我需要比以前早点起床。因为我的老师要求我七点半到校。上学后,我们的第一课开始之前,我和我的同学需要做大量的阅读。另一个重要区别是我现在需要学习物理和化学。这两个课程都是真的对我来说很困难。但我相信,“不劳则无获”。我可以学得我的同学一样好。 8. 帮忙写一篇英语作文:I used to When I was in primary school,I used to go school at 8:00. But while I went to middle school, I need to get up earlier than before.Because my teacher asked me to go to school at7:30. After going to school, my clas *** ates and I need to do a lot of reading before our first class is beginning. Another important difference is I need to learn physics and chemistry now. These o courses are really very hard for me. But I believe,"No pain, no gain".I can learn it as good as my clas *** ates. 9. used to的作文 不知道什么要求,是老是用它来写句子,还是解释这个词语? I used to live in the country. It was very beautiful. I used to live there with my parents. They used to live there when they were very young. There used to be a river there. The water in the river was very clean. But now it isn"t. It is polluted by some factories.

用usedto写作文带翻译

1. i used to 的英语作文及翻译 "Used to" is used when you want to make others know that a certain action happened frequently in the past, but not now (过去经常发生的事/习惯). For example, "I used to go to school at 7 a.m," an old man says. This means that when the man was in his childhood, he normally went to school (i.e. near everyday) at 7 a.m. However, now he doesn"t go to school any more. 2. 用used to do 结构写一篇80字的英语作文 并翻译 My parents used to be peasants. They used to work day and night. They used to live a poor life, though. There used to be no enough food in my family. So my parents used to suffer from hunger often. When I was 6 years old, they used to tell me again and again to work hard. Now, everything has changed. My parents are not peasants any longer. They work in a factory making clothes. They can earn enough money to live happily. I am now a senior school student. I will keep on working hard.望采纳。 3. 用used to do 结构写一篇80字的英语作文 并翻译 My parents used to be peasants. They used to work day and night. They used to live a poor life, though. There used to be no enough food in my family. So my parents used to suffer from hunger often. When I was 6 years old, they used to tell me again and again to work hard. Now, everything has changed. My parents are not peasants any longer. They work in a factory making clothes. They can earn enough money to live happily. I am now a senior school student. I will keep on working hard. 望采纳 4. 用usedto语法介绍自己写一篇英语作文 When I was in primary school,I used to go school at 8:00. But while I went to middle school, I need to get up earlier than before.Because my teacher asked me to go to school at7:30. After going to school, my clas *** ates and I need to do a lot of reading before our first class is beginning.Another important difference is I need to learn physics and chemistry now. These o courses are really very hard for me. But I believe,"No pain, no gain".I can learn it as good as my clas *** ates。 5. used to写作文 Hope School Thanks to the Hope Project r, great changes have taken place in a country school, This school used to be called Lijiazhuang School. Most of its pupils left school because their families were too poor to pay for their education. The only unsafe schoolhouse had to be used as classrooms.And all the teachers shared one room. The playground was nothing but an open land. Things are different now. All the children who left school have e to continue their studies. In the schoolyard stands a o-storeyed teaching building. There are rooms for music, art and - puter teaching. The school is well equipped with sports goods. The Project benefits the school a great deal. For this reason, it was renamed Hope School. 希望学校 多亏希望工程的实施,一所乡村学校发生了巨大的变化。 以前这学校叫做李家庄小学。由于家庭困难交不起学费,大部分学生辍学了。那座仅有的危房要用来做教室,所有的教师们共住一间。操场上除了空地什么也没有。 现在情况可不同了乙辍学儿童都回校继续学习。一座双层的教学楼矗立在校园内,有音乐室、美术室,还有教学用的电脑室。学校的体育器材配备精良。 希望工程给李家庄小学带来了极大的好处,学校也因此改名为“希望小学”。 6. 改变自己的英语作文要翻译用 used to be rom my point of view, we should change ourselves when the situation can"t be changed any more. Difficulties hide in every corner of our life so we have to face them at times. But the problem is that we sometimes are not able to change the challenging situations at all as our abilities are limited. When it es, we"d better change our attitude towards these difficulties. Only in this way can we get rid of the tough surroundings and be happy. Something like that happened to me once. There was a time when I was laughed at by my clas *** ates while I was walking. I was puzzled so I asked them why they laughed at me. One of them told me that the way I walked was very strange and funny. I was sad but I just couldn"t change the way I walked. And the situation of being laughed at by those people didn"t stop. Therefore, I changed my attitude towards the incident. I ignored those ments on me and walked as I used to. The ments soon disappeared and I was so glad to have succeeded in the quiet war. So in my opinion, we should change ourselves first and then the situation can be changed at last. It is very difficult for us to change our surroundings but much easier to change ourselves. People around us will see our change, after which they may change their attitude toward us. 7. 用usedto语法介绍自己写一篇英语作文 When I was in primary school,I used to go school at 8:00. But while I went to middle school, I need to get up earlier than before.Because my teacher asked me to go to school at7:30. After going to school, my clas *** ates and I need to do a lot of reading before our first class is beginning. Another important difference is I need to learn physics and chemistry now. These o courses are really very hard for me. But I believe,"No pain, no gain".I can learn it as good as my clas *** ates. 8. 帮忙写一篇英语作文:I used to When I was in primary school,I used to go school at 8:00. But while I went to middle school, I need to get up earlier than before.Because my teacher asked me to go to school at7:30. After going to school, my clas *** ates and I need to do a lot of reading before our first class is beginning. Another important difference is I need to learn physics and chemistry now. These o courses are really very hard for me. But I believe,"No pain, no gain".I can learn it as good as my clas *** ates. 9. used to的作文 不知道什么要求,是老是用它来写句子,还是解释这个词语? I used to live in the country. It was very beautiful. I used to live there with my parents. They used to live there when they were very young. There used to be a river there. The water in the river was very clean. But now it isn"t. It is polluted by some factories.

advancedtimezone译成中文是什么意思

这个是雅诗兰黛的“逆时空”系列的英文

wantedto的用法

wantedto的用法用在过去式。wantedto,想要,wanted用在过去式,后面有to的话是会加上动词或者代/名词。

head bread hedthy和sweater中发什么音?

/hed/ /bred/ /helθ/ /ˈswetə/ea,都发 /e/的音。

每位员工都应该遵守公司的规定用英语怎么说be supposedto?

"每位员工都应该遵守公司的规定"可以用英语表达为:"Every employee should abide by the regulations of the company."

strandedteens什么意思

stranded teens 全部释义和例句>>搁浅青少年stranded teens 全部释义和例句>>搁浅青少年

防弹少年团ifiruledtheworld歌词音译

The WorldIf I ruled the world I"d do it all(Westside, westside, westside)If i ruled the world I"d do it all(Westside, westside, westside)If I ruled the world I"d have it all男人的话都一样吧,pretty girls完全地消除 人种歧视European, Asian, Caucasian girls (I have "em) 那就呼唤 Rick Owens,Ann DemeulemeesterAlexsander Wang & Shayne Oliver一辈子都做着金南俊collection衣服颜色要是黑色,现在才有点满足Music, turn it up 烦躁一点 抠抠鼻孔 写的歌对着地球上所有的人唱吧歌曲题目是哀苦歌(谐音爱国歌) 看看被漂亮女人淹没的TV吧世上的所有女人都为我 ready to die男人们带着你们的酒来,就那样没了也好因为不管怎样这里是我的王国If i ruled the worldI"d do it all (I"d do it all)I said 1 for the money, 2 for the moneyIf i ruled the worldI"d do it all (I"d do it all)I said 1 for the money, 2 for the moneyEverybody say he-o-e-oh-oh!Everybody say he-o-e-oh-oh!Everybody say hey, ho! Hey-hey-ho!虽然知道不像话 只是唱唱这样幼稚的歌if i ruled the world 偶尔做做梦我如果来支配世界的话首先我会找来房地产经纪人买一套和家人一起住的房子没错,下一个就是把我驾驶许可从睡梦里叫醒 买一台4轮驱动汽车 还要加点油即使这样过分也要无息分期股票和赌博之类是不会碰的既然支配了世界 为什么梦还这样朴素不要提这样的问题 对我和防弹家人们这样我也依旧i"m still 想做音乐我是嘻哈界的金正恩提出我们音乐的口头审议虽然是毫不相干的梦It"s my dream 不要嘲笑If i ruled the worldI"d do it all (I"d do it all)I said 1 for the money, 2 for the moneyIf i ruled the worldI"d do it all (I"d do it all)I said 1 for the money, 2 for the moneyEverybody say he-o-e-oh-oh!Everybody say he-o-e-oh-oh!Everybody say hey, ho! Hey-hey-ho!虽然知道不像话 只是唱唱这样幼稚的歌Oh girl, 在哪里? Oh god, 在这里!世界上所有的女人们都是hope world,都站好了money都轻易的花出去钱也会向着我球门一般的钱包 都进球

香水浓香是edp还是edt?

EDP是法语:eau de parfum,翻译成中文是浓香水的意思。其香油占15%~18%,所含的酒精纯度约占80%~90%,香味可维持约五小时。EDT是法语:eau de toilette,翻译成中文是淡香水的意思。其香油占4%~8%,所含酒精纯度约占70%~80%,香味可维持三至四小时。edp的香料结构平衡在各个部分,追求挥发效果和持香能力,赋香率约为10%-15%,持续的时间大约是3-4小时。浓度高的香水就是浓香,浓度低的香水就是淡香,一般香水浓度越高,留香时间越长,浓度越淡留香时间越短。高浓度的香水低调又持久,低浓度的香水味道出挑但需要时刻补喷,两种香水适合的场合人群也不一样,浓香适合正式场合,淡香适合休闲娱乐场所。香水最好选择符合个人气质的,或者根据场合来挑选,一般年轻人士更适合淡香,成熟人士适合浓香。香水的浓香和淡香原料配比是不同的,味道也有差别,香水浓度越高留香时间越长。淡香味道比较轻盈慵懒,带着一丝清新,有朝气感;浓香比较厚实浓郁,给人稳重的感觉,重要场合可以选择浓香,显得更庄重。香水按照其所含香精浓度不同,可以划分为以下几种:1、EauFraiche清淡香水(纯香精<3%),市面上的剃须水、香水剂等都属于这一等级,给人带来神清气爽的感觉,但留香时间较短。2、EaudeCologne古龙水(纯香精占2-5%),古龙水是香水的一个种类,而不是品牌,男式香水大多属于此等级。3、EaudeToilette淡香水(纯香精占4–10%),又叫盥用水,味道清淡,留香时间约为三四个小时。4、EaudeParfum淡香精(纯香精占8–15%),香精含量较高,香气也比较持久。5、Parfum/Extrait浓香精(纯香精占15–25%),它的香气十分持久,价格也较贵。以上内容参考:百度百科-香水

香水盒上的edt和edp指什么?

EDP (EAU DE PERFUME) 持香率较久的香水,即淡香精, 赋香率约为10-15%,持续的时间约3-4小时。 价格也比一般香水略高。所谓EDP就是Eau de Perfume的简称,浓度比香精清淡些,且价格也比香精稍低。适用于白天外出时。 EDT (EAU DE TOILETTE) 泛指一般淡香水 赋香率约为5-10%,持续的时间约2-3小时。 价格最便宜,也是最常见最被广泛使用的。所谓EDT就是Eau de Toilette的简称,对于第一次尝试使用香水试用者是个不容易出错的选择,从居家到办公都适宜

prohibitedto和prohibitedfrom的区别

prohibitedto和prohibitedfrom的区别:1、prohibitedto是及物动词,接名词、代词或动名词作宾语。2、prohibitedfrom用作动词的用法。

bontfeedtheanimals!怎么读

应该 是Don"t feed the animals. 别喂食动物

don,tfeedtheanimals怎么读

汉语模拟发音飞得 则 埃内某斯

donitfeedtheanimals怎么读

就游客不要给豆豆,15应该是。

weresupposedto中supposed的词性

是动词suppose的过去分词。根据查询相关信息显示,weresupposedto中supposed的词性是动词suppose的过去分词,suppose的基本意思是猜想、以为、假定。supposed,英语单词,主要用作为形容词,动词。

EDTA标准溶液的配备与标定,英文翻译

实验 10配制和标定 浓度0.05 mol/L的标准EDTA( 乙二胺四乙酸 )溶液I.实验目的和要求1. 掌握EDTA标准溶液的配制和标定2. 学习如何用铬黑T指示剂标定II 梗概EDTA ( 乙二胺四乙酸 )标准溶液通常通过溶解乙二胺四乙酸二钠二水合物(Na2H2Y.2H20=392.28)于水中来配制。 乙二胺四乙酸二钠二水合物是一种白色结晶性粉末。这种物质通过间接法被用来配置标准溶液,它的浓度由原始标准来标定。 氧化锌(ZnO)也可以用来作为原始。。。。 太多了, 要翻死的. 你直接摆渡 "EDTA溶液的配制与标定(铬黑T法)" 就可搜到中文版本了.这个实验Manual其实很简单啊, 也没什么难的单词。

berelatedtodoing和todo的区别

二者区别:1、todo一般是表示目的,是比较常用的搭配。2、todoing中的to是介词,后面要跟名词。3、berelatedto后面跟名词或代词或动名词doing,中文意思是与…有关系。

youarerequiredtotalkaboutthefollowingpiechart什么意思?

You are required to talk about the following pie chart您需要谈论以下饼图

squeezedtext(1111)lines什么意思

意思是运行结果总共运行1111字符,这里省略显示,如需显示全部结果,鼠标指向提示,双击。

Polar bear past bedtime咋翻译

北极熊错过了睡眠时间

EDTA 在 SDS-PAGE 中的作用是什么?

“鬼带”是在跑大分子构象复杂的蛋白质分子时,常会出现在泳道顶端(有时在浓缩胶中)的一些大分子未知条带或加样孔底部有沉淀,主要由于还原剂在加热的过程中被氧化而失去活性,致使原来被解离的蛋白质分子重新折叠结合和亚基重新缔合,聚合成大分子,其分子量要比目标条带大,有时不能进入分离胶。但它却于目标条带有相同的免疫学活性,在WB反应中可见其能与目标条带对应的抗体作用。处理办法:在加热煮沸后,再添加适量的DTT或Beta巯基乙醇,以补充不足的还原剂;或可加适量EDTA来阻止还原剂的氧化。

ibelongedtoyou什么意思

“我属于你”

Usher的《Bedtime》 歌词

歌曲名:Bedtime歌手:Usher专辑:LiveUsher & BabyfaceBedtime"I just want you so much. Can I have you baby, do you hear me baby?(verse 1)Craving your body all through the night, feels like I"m going through withdrawI want to hold you, I want you inside of these armsI"m dying to taste you, I can"t denyI can"t get it out of my mindPlease let me hold youCuz" I need your lovin" tonight(chorus)Whenever I"m near you, my love just comes down (just comes down)whenever I see you, I just want you around (oh baby, oh suga)"Cause I wanna feel you all through the day and the night (oh lady)whenever I"m near you it feels like bedtime(verse 2)Constantly thinking of things to do, places where we can make loveCuz" I wanna freak you, I"ll freak you where ever you wantPlacing my kisses all over you, caressing you so nice and slowOh how I want you, girl theres something I want you to know(chorus)Whenever I"m near you, my love just comes down (just comes down)whenever I see you, I just want you around (I just want it baby...)"Cause I wanna feel you all through the day and the night (Oh)whenever I"m near you, it feels like bedtime(bridge)Do you get lonely (ooh, I get lonely)thinking about me? (thinkin" about you)Am I the only...(Girl I dream of, I think of at all)Are you into me, outta your mind for me?Say you can"t go a day with out me...Girl I love you,and I want you,and I need you, I need you, I need you(chorus)Whenever I"m near you, my love just comes down (my love comes down)whenever I see you, I just want you around (Oh I want you, I want you)"Cause I wanna feel you all through the day and the nightwhenever I"m near you, it feels like bedtime(chorus)Whenever I"m near you, my love just comes down (my love, my love my love)whenever I see you, I just want you around (I just need you...cuz)"Cause I wanna feel you all through the day and the nightwhenever I"m near you, it feels like bedtime (It feels like bedtime)It feels like bed time...(baby)http://music.baidu.com/song/10325002

realizedthat用法

alize的使用方法1:realize的基础含意是使理想、方案、期望等变成实际。扩充可指人清楚地清楚、领会、感受到某事,例如软弱无能风险错漏困难等。在非正式口语中, realize有时能做认出解。realize的使用方法2:realize可用作及物动词,也可用作不及物动词。用作及物动词时,可接专有名词、代词或者that/wh-从句做宾语。做知道了解到解时不用来进行体,也不用来被动结构; 做实现解时可用来被动结构。realize的使用方法3:realize可接介词from,表明从收获,接on表明根据出卖收获。realize的使用方法4:realize在英式拼法中也可拼做realise。

LaTex,还有WinEdt是用来做什么的(详细一点)?

LaTeX或者说WinEdt,通俗的来讲就是文档排版的神器,研究生,博士生,科研人员常打交道的软件,发论文几乎必须要用这个排版。可能有人说文档排版,可以用Word,但是一般的文字图片排版,Word还比较不错,像科研论文,特别是当公式符号以及上下标,幂次,矩阵比较多且繁琐时,Word中虽可以用公式编辑器,但是那会超级复杂哦,且当文档发给别人时,如果word的版本兼容性不是很好时,就会出现错误,比如公式文字对不齐,而且还没法调试。这时有人又会说发给别人时可以发PDF的,但是,这样当你的论文以PDF格式发给编辑时,编辑就不可以再排版,这小显然是不可以的。所以,这时候就凸显出WinEdt的价值了。

onemoretimeineedtobe什么歌

《onemoretime》。“onemoretimeineedtobe”出自歌曲《onemoretime》中的“onemoretimeineedtobe,Cantgoonwithoutyoubymyside”片段。该歌曲是2013年8月28日发行,作为主打曲收录于韩国乐队cnblue第二张日本正规专辑《whatturnsyouon》中。

relatedto... 造句

Is the topic related to what we are saying. 这个话题是否与我们说的有关系?

Decidedtodosth可以等于什么

decide 英[d??sa?d] 美[d??sa?d]vt. 决定; 决心; 解决; 裁决;vi. 决定; 下决心;-n.decision 决定,决心例句:You need not now decide. 你不需要现在决定。decide to do sth. 表示决定做某事没有decide doing sth这个结构相关结构:make a decision 作出决定decide on doing sth. 决定做某事decide that sb. would do sth. 决定要做某事如:He decided to buy a new car .He decided on buying a new car .He decided that he would buy a new car.

failedtowrite什么鬼

启动失败。启动失败是由于在装系统时出现failedtowritedatatoafile乱码导致的。需要关机重启即可。

FailedtosetvalueErrorcode:5

jmeter需要写注册表。1、在我的电脑桌面开始-运行在运行框里输入regedit按确定(回车)即可进入注册表。2、之后进入注册表界面,在HKEY_LOCAL_MACHINESOFTWAREJavaSoft下新建Prefs即可。

win7玩英雄联盟lol频繁出现failedtocreatedumpfile:(error183)窗口怎么办

lol英雄联盟是一款大型3D竞技场战网游戏,很多游戏玩家都在自己win764位系统电脑上安装lol英雄联盟软件,但是在游戏过程中,总会遇到一些小问题。比如win7玩英雄联盟lol频繁出现failedtocreatedumpfile:(error183)窗口,非常烦人,手动关闭后不久又弹出窗口,有什么办法能够永久关闭呢?方法当然是有的,下面小编演示具体方法。解决办法如下1、看看是不是dump目录权限不足;(C:Users用户名AppDataLocalTemp目录,需要先显示隐藏文件才能查看);2、右键文件夹在弹出菜单点击“属性”然后找到“安全选”上面找到“编辑”点击;3、然后我们设置所有权限,我们搜索everyone,然后点击“检查名称”然后找到的检索到everyone的组,点击确定;4、现在我们就给temp加上了everyone的读写权限,然后我们给它完全的权限即可了。因本故障属于运行游戏时出现,真实情况可能会有差异,如上述方案无效,可参考以下步骤排除:1、我们现在打开“任务管理器”然后我们再找到“英雄联盟的游戏进程”进程名字为lol.launcher_tencent.exeLeagueofLegends.exeLolClient.exe三个,右键点击,在弹出菜单选择创建转储文件,然后再运行游戏。2、卸载电脑中的显卡,声卡驱动,更新到通过WHQL认证版本的驱动程序测试。3、降低游戏画质,修改电脑上的虚拟内存,可以使用电脑默认管理方式。4、有反馈关闭盒子的打野计时功能可以解决。上述就是win7玩英雄联盟lol频繁出现failedtocreatedumpfile:(error183)窗口的解决方法,希望本教程内容对大家有实际性的帮助。

装系统时出现failedtowritedatatoafile

启动失败、硬盘读取错误。1、启动失败是由于在装系统时出现failedtowritedatatoafile乱码导致系统启动失败,关机重启即可2、硬盘读取错误是由于安装系统后出现硬盘读取错误导致出现failedtowritedatatoafile乱码,使用diskgenius分区工具,使用重建主引导记录对硬盘进行修复即可。

edit richedt 区别

如果要输入大段文章内容的话,控件可容纳字数更多,用RICHEDIT。如果只要输入不长的内容的话,用EDIT。几乎没有太大的区别,但是在有些特定的地方才会有区别。如:判断edit中光标状态并得到选中内容(richedit同样适用) int nStart, nEnd; CString strTemp; m_edit1.GetSel(nStart, nEnd); if(nStart == nEnd) {undefined strTemp.Format(_T("光标在%d"), nStart); AfxMessageBox(strTemp); } else {undefined //得到edit选中的内容 m_edit1.GetWindowText(strTemp); strTemp = strTemp.Mid(nStart) - strTemp.Mid(nEnd); AfxMessageBox(strTemp); }在这里面两者的作用和用法几乎一样。

求Maria Mohn 的 bedtime story 歌词

all i want there when i was three i see it has a banner and love sleep lately i guess it"s only in faerie tales a girl could really get her waste but i been accede a hundred years without complain then there will have no fear but all the stalks twirl in my head and i"m not sleep acquaint madam stand i lose the point for me i sleep in mess so tell me tell me your story i may past time you konw i"m just a miss i"m losing patient so please tell me when will you tell me your story and if you don"t i may not sleep again so tell me tell me your story a bedtime story the sin was white white as snow a lip was red and it use to blow the hair was black and like gabbly wood the pretty eareast girl in the neiborhood but her mother rather want her dead so cut up what magic mirror said but there assassin kill a deer in stead and now her life is hanging by a thread i lose the point for me i sleep in mess so tell me tell me your story i may past time you konw i"m just a miss i"m losing patient so please tell me when will you tell me your story and if you don"t i may not sleep again so tell me tell me your storyyou came to my isle there"ll turning red i"ve been counting she turn my fingers wet don"t you deliver me in my lonely bedi lose the point for me i sleep in mess so tell me tell me your story i may past time you konw i"m just a miss i"m losing patient so please tell me when will you tell me your story and if you don"t i may not sleep again so tell me tell me your story a bedtime story有些地方听不清楚,凑乎看吧

滴定edta需用什么滴定管

滴定edta需用酸式滴定管。滴定方法滴定方法主要有以下4种:①直接滴定。即用标准EDTA溶液直接滴定金属离子,以一适当指示剂确定终点;由于反应过程释出H+,须使用缓冲溶液以维持pH恒定。对在控制pH下易水解的金属,还须加入辅助络合剂以抑制之。②回滴法。对某些金属,容易水解或与EDTA络合缓慢,或者没有适于直接滴定的指示剂,可加入过量EDTA,然后用一适当金属回滴。③置换滴定 [1] 。若待测金属MⅠ能参与置换反应且各稳定常数值符合>>108,则MⅠ可定量地置换,然后用EDTA滴定,从而间接求出MⅠ。另一种置换滴定法是用一种比EDTA更强的络合剂HnZ置换MⅠ-EDTA络合物中的EDTA,用MⅡ滴定。④间接滴定。主要用于滴定那些与EDTA弱络合的阳离子,或不与EDTA络合的阴离子。例如,在适宜条件下,加入一定量的铋盐沉淀磷酸根为磷酸盐,然后用EDTA滴定过量的铋而间接测得磷。络合滴定使用的指示剂多为金属指示剂。这些金属指示剂必须要与金属络合后呈相当深的颜色,络合物的lgK>5才有足够的灵敏度;指示剂络合物的稳定性要比EDTA络合物的稳定性约低3个lgK单位,终点才敏锐。此外,在同一pH下,游离指示剂与指示剂络合物要有显著不同的颜色。金属指示剂中能产生荧光的则称为金属荧光指示剂。也可以使用仪器确定终点,如电位分析法,库仑滴定法,安培滴定法,分光光度滴定法等,既可提高灵敏度和准确度,也可用于测定微量元素。

likeweusedtodo什么意思

你好!like we used to do像我们过去一样

often能不能与usedtodo连用

  used to do  过去常常做某事(暗示现在已经不这样了)  e.g.1.He used to play soccer, but now he plays basketball.  他过去常常踢足球,但是现在他打篮球。  2.She used to be shy and quiet, but now she is very outgoing.  她过去文静而且害羞,但是现在她很外向。  be used to doing  习惯于什么/习惯于做什么(指现在,to是介词)  e.g.1.I am used to the weather here.  我习惯了这里的天气。  2.I am used to sleeping early.  我习惯早睡。

usedto的解释是什么

usedto的意思是:惯于;过去经常。usedto的意思是:惯于;过去经常。usedto的词义辨析是usedto,would。usedto【近义词】accustomed习惯了的。一、参考翻译点此查看usedto的详细内容习惯于二、网络解释1.过去常常:167)beusedto习惯于|168)usedto过去常常|169)wake...up唤醒2.usedto的意思2.(过去)经常:useup用完,耗尽;花完|usedto(过去)经常|valueoneselfon自夸3.usedto的反义词3.以前:.崩溃Breakdown|.以前Usedto|.仍未结束It"snotover4.过去常常做某事:2.atthemonent现在;此刻|3.usedto过去常常做某事|4.putdown放下;写下三、例句IweighlessthanIusedto.我的体重比以前轻了。JackusedtoassistMaryinherlessons.杰克过去常常帮助玛丽学习功课。Iusedtogetupearlyandtakeanhour"swalkbeforebreakfast.我过去常常起床很早并且在早餐前散步一小时。Womenusedtothinktheywereontheshelfat30.过去女人一到30岁就认为是过了结婚年龄。四、词汇搭配getusedto习惯于likemotherusedtomake有家庭烹调风味...getusedtoit吃惯苦头becomeusedto适应于justlikemotherusedtomakeit有家庭烹调风味...beusedto被用来(后接动词原形...五、情景对话介绍A:Mary,thisisJoe"sbrotherDavid.玛丽,这是乔的兄弟大卫。B:I"mverygladtomeetyou.我很高兴见到你。C:It"sapleasuretomeetyou.很高兴见到你。B:HowdoyoulikeBeijingsofar?到现在你觉得北京怎么样?C:It"sreallydifferentfromwhatIexpected.与我想象的很不一样。B:Don"tworry.You"llgetusedtoitinnotime.别担心。你很快就会习惯它了。Heating&Air-Conditioning-(暖气和空调)A:Wow,youkeepthisplacecold.哇,你这个地方真够凉快的。B:Yep.It"scoldinthesummer,hotinthewinter.是。冬暖夏凉。A:Yourelectricitybillsmustbeenomp3ous.你的电费可不得了吧。B:Yeah,well,it"sasmallpricetopaytobecomfortable,inmymind.是呀,可是,我觉得要住得舒适这点钱不算什么。usedto是什么意思A:Itisnicetocomeinhereafterarun.跑步完进来这里真不赖。B:Yeah.Thecentralheatingandair-conditioningworkslikeachamp3.是呀,中央冷暖系统简直妙不可言。A:Iusuallydon"tuseitunlessitgetsreallyhot.Ijustopenupsomewindows,andI"mfine.除了真的非常热我是不会用(空调)的。就把窗户打开,这样就很好了。B:Myfriend"sfamilydidthesamething.Icouldnevergetusedtoit,though.我朋友家里也是这样。可是我可不习惯。Jogging-(慢跑)usedto的意思B:Hey,Tom,whattogoforarun?嘿,汤姆,去跑跑步怎么样?A:Nothanks.Iliketoruninthemorning.IranacoupleofmileswhenIwokeuptoday.不了,谢谢你。我喜欢在早上跑步。今天起床后我跑了几英里。usedto的反义词B:Itrytodothat,butIcan"tgetupearlyenough.我也试图这样做,可是起得不够早。A:Icouldn"teitheratfirst,butyougetusedtoit.一开始我也不行,可是慢慢会习惯的。B:It"ssohotatlunchtime;I"dratherruninthemorning.中午的时候太热了,我也宁愿早上跑步。usedto的翻译A:Well,whydon"tyoucometomorrow?I"llstopbyyourhouseonmywayout.那么,你为什么不明天来呢?我出来的时候顺便经过你家。B:Icouldtry,butIcan"tsayforsureifI"llgetupintime.Whattimedoyouwanttogo?我会尽力,但是不能保证一定可以准时起床。你想几点钟去?A:I"llgiveyouacallaround6:00andstopbyaround6:30.六点的时候我给你打个电话,大约6点半的时候我经过你这儿。usedto的翻译B:O.K.,maybeifIhavesomeonetogowith,I"llbeabletogetupintimeforajog.好的,或许如果有个伴的话,我可以按时起床跑跑步。A:Great,I"llseeyouthen.好的,到时见。B:Seeyou.再见。六、词义辨析usedto,would这两个词均含“过去惯常,过去总是”之意。usedto指客观地表示过去的习惯,既可是过去经常发生的动作,又可是过去一向存在的状态,比would通俗,往往含今昔感。would指过去经常发生的行为,主观感情色彩较浓,只表过去惯常行为,既不表状态也不表持续动作。不含“过去如此,现在不再这样”的意味。usedto,beusedto,getusedto这三个词组都包含"used"这个单词。usedto意为“过去常常(做某事)”,后接动词原形。常用来表示今昔对比,含“(现在)已不那样做了”之意。beusedto有两个含义:①“被用来做某事”,后接动词原形。②“习惯于;适应”,后接名词、代词或v-ing,表示一种状态。getusedto意为“习惯于”,表示一个动作,含“由不适应向适应的转变”,其后接名词、代词或v-ing。usedto的相关近义词accustomed、adapted、getusedto、beusedtousedto的相关临近词used、usedstamp、usedcases、usedtodo、usedtires、used-car、Usedbridge、usedlining、usedliquid、usedeffect、used-tire点此查看更多关于usedto的详细信息

usedto的解释usedto的解释是什么

usedto的意思是:惯于;过去经常。usedto的意思是:惯于;过去经常。usedto的词义辨析是usedto,would。usedto【近义词】accustomed习惯了的。一、参考翻译点此查看usedto的详细内容习惯于二、英英释义Adjective:inthehabit;"Iamusedtohitchhiking""you"llgetusedtotheidea""...waswonttocomplainthatthisisacoldworld"三、例句IweighlessthanIusedto.我的体重比以前轻了。JackusedtoassistMaryinherlessons.杰克过去常常帮助玛丽学习功课。Iusedtogetupearlyandtakeanhour"swalkbeforebreakfast.我过去常常起床很早并且在早餐前散步一小时。Womenusedtothinktheywereontheshelfat30.过去女人一到30岁就认为是过了结婚年龄。四、词汇搭配getusedto习惯于likemotherusedtomake有家庭烹调风味...getusedtoit吃惯苦头becomeusedto适应于justlikemotherusedtomakeit有家庭烹调风味...beusedto被用来(后接动词原形...五、情景对话介绍A:Mary,thisisJoe"sbrotherDavid.玛丽,这是乔的兄弟大卫。B:I"mverygladtomeetyou.我很高兴见到你。C:It"sapleasuretomeetyou.很高兴见到你。B:HowdoyoulikeBeijingsofar?到现在你觉得北京怎么样?C:It"sreallydifferentfromwhatIexpected.与我想象的很不一样。B:Don"tworry.You"llgetusedtoitinnotime.别担心。你很快就会习惯它了。Heating&Air-Conditioning-(暖气和空调)A:Wow,youkeepthisplacecold.哇,你这个地方真够凉快的。B:Yep.It"scoldinthesummer,hotinthewinter.是。冬暖夏凉。A:Yourelectricitybillsmustbeenomp3ous.你的电费可不得了吧。B:Yeah,well,it"sasmallpricetopaytobecomfortable,inmymind.是呀,可是,我觉得要住得舒适这点钱不算什么。usedto是什么意思A:Itisnicetocomeinhereafterarun.跑步完进来这里真不赖。B:Yeah.Thecentralheatingandair-conditioningworkslikeachamp3.是呀,中央冷暖系统简直妙不可言。A:Iusuallydon"tuseitunlessitgetsreallyhot.Ijustopenupsomewindows,andI"mfine.除了真的非常热我是不会用(空调)的。就把窗户打开,这样就很好了。B:Myfriend"sfamilydidthesamething.Icouldnevergetusedtoit,though.我朋友家里也是这样。可是我可不习惯。Jogging-(慢跑)usedto的意思B:Hey,Tom,whattogoforarun?嘿,汤姆,去跑跑步怎么样?A:Nothanks.Iliketoruninthemorning.IranacoupleofmileswhenIwokeuptoday.不了,谢谢你。我喜欢在早上跑步。今天起床后我跑了几英里。usedto的反义词B:Itrytodothat,butIcan"tgetupearlyenough.我也试图这样做,可是起得不够早。A:Icouldn"teitheratfirst,butyougetusedtoit.一开始我也不行,可是慢慢会习惯的。B:It"ssohotatlunchtime;I"dratherruninthemorning.中午的时候太热了,我也宁愿早上跑步。usedto的翻译A:Well,whydon"tyoucometomorrow?I"llstopbyyourhouseonmywayout.那么,你为什么不明天来呢?我出来的时候顺便经过你家。B:Icouldtry,butIcan"tsayforsureifI"llgetupintime.Whattimedoyouwanttogo?我会尽力,但是不能保证一定可以准时起床。你想几点钟去?A:I"llgiveyouacallaround6:00andstopbyaround6:30.六点的时候我给你打个电话,大约6点半的时候我经过你这儿。usedto的翻译B:O.K.,maybeifIhavesomeonetogowith,I"llbeabletogetupintimeforajog.好的,或许如果有个伴的话,我可以按时起床跑跑步。A:Great,I"llseeyouthen.好的,到时见。B:Seeyou.再见。六、词义辨析usedto,would这两个词均含“过去惯常,过去总是”之意。usedto指客观地表示过去的习惯,既可是过去经常发生的动作,又可是过去一向存在的状态,比would通俗,往往含今昔感。would指过去经常发生的行为,主观感情色彩较浓,只表过去惯常行为,既不表状态也不表持续动作。不含“过去如此,现在不再这样”的意味。usedto,beusedto,getusedto这三个词组都包含"used"这个单词。usedto意为“过去常常(做某事)”,后接动词原形。常用来表示今昔对比,含“(现在)已不那样做了”之意。beusedto有两个含义:①“被用来做某事”,后接动词原形。②“习惯于;适应”,后接名词、代词或v-ing,表示一种状态。getusedto意为“习惯于”,表示一个动作,含“由不适应向适应的转变”,其后接名词、代词或v-ing。usedto的相关近义词accustomed、adapted、getusedto、beusedtousedto的相关临近词used、usedstamp、usedcases、usedtodo、usedtires、used-car、Usedbridge、usedlining、usedliquid、usedeffect、used-tire点此查看更多关于usedto的详细信息

usedtodo和usedtodoing各是什么意思

used to do过去常常做 used to doing 习惯于做

usedto的意思usedto的意思是什么

usedto的意思是:惯于;过去经常。usedto的意思是:惯于;过去经常。usedto的词义辨析是usedto,would。usedto【近义词】accustomed习惯了的。一、参考翻译点此查看usedto的详细内容习惯于二、英英释义Adjective:inthehabit;"Iamusedtohitchhiking""you"llgetusedtotheidea""...waswonttocomplainthatthisisacoldworld"三、例句IweighlessthanIusedto.我的体重比以前轻了。JackusedtoassistMaryinherlessons.杰克过去常常帮助玛丽学习功课。Iusedtogetupearlyandtakeanhour"swalkbeforebreakfast.我过去常常起床很早并且在早餐前散步一小时。Womenusedtothinktheywereontheshelfat30.过去女人一到30岁就认为是过了结婚年龄。四、词汇搭配getusedto习惯于likemotherusedtomake有家庭烹调风味...getusedtoit吃惯苦头becomeusedto适应于justlikemotherusedtomakeit有家庭烹调风味...beusedto被用来(后接动词原形...五、情景对话介绍A:Mary,thisisJoe"sbrotherDavid.玛丽,这是乔的兄弟大卫。B:I"mverygladtomeetyou.我很高兴见到你。C:It"sapleasuretomeetyou.很高兴见到你。B:HowdoyoulikeBeijingsofar?到现在你觉得北京怎么样?C:It"sreallydifferentfromwhatIexpected.与我想象的很不一样。B:Don"tworry.You"llgetusedtoitinnotime.别担心。你很快就会习惯它了。Heating&Air-Conditioning-(暖气和空调)A:Wow,youkeepthisplacecold.哇,你这个地方真够凉快的。B:Yep.It"scoldinthesummer,hotinthewinter.是。冬暖夏凉。A:Yourelectricitybillsmustbeenomp3ous.你的电费可不得了吧。B:Yeah,well,it"sasmallpricetopaytobecomfortable,inmymind.是呀,可是,我觉得要住得舒适这点钱不算什么。usedto是什么意思A:Itisnicetocomeinhereafterarun.跑步完进来这里真不赖。B:Yeah.Thecentralheatingandair-conditioningworkslikeachamp3.是呀,中央冷暖系统简直妙不可言。A:Iusuallydon"tuseitunlessitgetsreallyhot.Ijustopenupsomewindows,andI"mfine.除了真的非常热我是不会用(空调)的。就把窗户打开,这样就很好了。B:Myfriend"sfamilydidthesamething.Icouldnevergetusedtoit,though.我朋友家里也是这样。可是我可不习惯。Jogging-(慢跑)usedto的意思B:Hey,Tom,whattogoforarun?嘿,汤姆,去跑跑步怎么样?A:Nothanks.Iliketoruninthemorning.IranacoupleofmileswhenIwokeuptoday.不了,谢谢你。我喜欢在早上跑步。今天起床后我跑了几英里。usedto的反义词B:Itrytodothat,butIcan"tgetupearlyenough.我也试图这样做,可是起得不够早。A:Icouldn"teitheratfirst,butyougetusedtoit.一开始我也不行,可是慢慢会习惯的。B:It"ssohotatlunchtime;I"dratherruninthemorning.中午的时候太热了,我也宁愿早上跑步。usedto的翻译A:Well,whydon"tyoucometomorrow?I"llstopbyyourhouseonmywayout.那么,你为什么不明天来呢?我出来的时候顺便经过你家。B:Icouldtry,butIcan"tsayforsureifI"llgetupintime.Whattimedoyouwanttogo?我会尽力,但是不能保证一定可以准时起床。你想几点钟去?A:I"llgiveyouacallaround6:00andstopbyaround6:30.六点的时候我给你打个电话,大约6点半的时候我经过你这儿。usedto的翻译B:O.K.,maybeifIhavesomeonetogowith,I"llbeabletogetupintimeforajog.好的,或许如果有个伴的话,我可以按时起床跑跑步。A:Great,I"llseeyouthen.好的,到时见。B:Seeyou.再见。六、词义辨析usedto,would这两个词均含“过去惯常,过去总是”之意。usedto指客观地表示过去的习惯,既可是过去经常发生的动作,又可是过去一向存在的状态,比would通俗,往往含今昔感。would指过去经常发生的行为,主观感情色彩较浓,只表过去惯常行为,既不表状态也不表持续动作。不含“过去如此,现在不再这样”的意味。usedto,beusedto,getusedto这三个词组都包含"used"这个单词。usedto意为“过去常常(做某事)”,后接动词原形。常用来表示今昔对比,含“(现在)已不那样做了”之意。beusedto有两个含义:①“被用来做某事”,后接动词原形。②“习惯于;适应”,后接名词、代词或v-ing,表示一种状态。getusedto意为“习惯于”,表示一个动作,含“由不适应向适应的转变”,其后接名词、代词或v-ing。usedto的相关近义词accustomed、adapted、getusedto、beusedtousedto的相关临近词used、usedstamp、usedcases、usedtodo、usedtires、used-car、Usedbridge、usedlining、usedliquid、usedeffect、used-tire点此查看更多关于usedto的详细信息

usedtodo,beusedtodoing,beusedtodo造句 造句 快 急用

used to do过去常常做某事 I used to be a young pioneer. I used to jog in the evening. be used to doing习惯于做某事 I"m used to drinking a cup of water after meal. He"s been used to living at the campus. be used to do(和前面两者没有可比性,意思是“被用来做某事”) This machine is used to clean the wall. This word is used to express a kind of animal.

请教usedtodo和beusedtodoing的区别

be/get used to doing sth.表示习惯于做某事或习惯于某事,to是介词,后面要跟名词、代词或动名词.而used to do sth.则表示过去常常,to后跟原形动词.如:Now he is used to getting up early.现在他已经习惯早起了.He used to get up early.过去他经常早起.(意味着如今他不再早起了.)You"ll soon get/be used to hard work.你会很快习惯于艰苦的工作的.

为什么usedtodo的正式的否定形式要在u

两种否定形式都可以

usedtodo的todo是非谓语

不是,他是固定搭配 be used to doing 习惯于做某事还有比较容易混的 used to do 过去常常做某事,be used to do被用于做某事

usedtodo和usedtodoing各是什么意思

used to do sth过去常常做某事be used to doing 习惯干某事

usedtodo和usedtodoing区别

used to do sth意思是"过去习惯做某事",如:I used to visit the old people in the past. (我过去常常去看望老年人。)used to doing sth, 前边应该有一个be动词,根据be动词时态,确定是何时习惯做某事,例如:I am used to studying in a library. (我现在习惯在图书馆学习。) We will be used to living in the big city. (我们将习惯在大城市生活。)

用usedtodo描述五年前和现在的自己80词

be/get used to doing sth.表示习惯于做某事或习惯于某事,to是介词,后面要跟名词、代词或动名词.而used to do sth.则表示过去常常,to后跟原形动词.如:Now he is used to getting up early.现在他已经习惯早起了.He used to get up early.过去他经常早起.(意味着如今他不再早起了.)You\"ll soon get/be used to hard work.你会很快习惯于艰苦的工作的. be/get used to doing sth.表示习惯于做某事或习惯于某事,to是介词,后面要跟名词、代词或动名词。used to do sth.则表示过去常常,to后跟原形动词。一个表示现在的习惯(相当与一般现在时),一个表示过去的习惯(相当与一般过去时)He was used to play baskedball when he was a little boy.当他还是个小男孩时,他习惯于打篮球He was ueed to playing football.他现在习惯于踢足球。

usedtodo和usedtodoing区别是什么?

used to do和used to doing的区别为:指代不同、语法不同、侧重点不同。一、指代不同1、used to do:过去常常做某事。2、used to doing:习惯于。二、语法不同1、used to do:used的基本意思是“用过的,旧的,二手的”,指某物已被某人拥有过,使用过,作此解时在句中一般用作定语。2、used to doing:used与介词to连用,表示“习惯于…的”,在句中一般用作表语,其后只能接名词、代词、动名词,不能接动词不定式。三、侧重点不同1、used to do:表达的是一种习惯。2、used to doing:表达的是一种倾向。

usedtodo用法归纳高中

used to的意思是“过去经常”,其中的to是不定式符号,不是介词,所以其后接动词原形(不接动名词)。如: He used to live in Paris. 他过去一直住在巴黎。 I used to write poetry when I was young.我年轻时常常写诗。 扩展资料   用法:   1.used to作为情态动词,可直接在used后加not构成否定式,直接将used置于句首构成疑问式,但与一般的情态动词不同的,它也可像普通动词那样借助助动词did构成否定式和疑问式。如:   He usedn"t [didn"t use] to come. 他过去不常来。   You used to go there, usedn"t [didn"t] you? 你过去常到那儿去,是吗?   2.used to与副词连用时的`位置:   与often, always, never等副词连用时,通常置于副词之后,也可置于副词之前。如:   I always used [used always] to be afraid of dogs. 我过去老是怕狗。   3.used to 与 be used to的用法比较   (1) used to 意为“过去经常”,其中的 to 是不定式符号,后接动词原形。如:   He used to live in Paris. 他过去一直住在巴黎。   (2) be used to 意为“习惯于”,其中的to是介词,后接动词要用动名词。如:   He is used to living in the country. 他已习惯于住在乡下。

usedtodo与usedtohave的区别

区别:used to do sth.过去常常做某事,(意思现在不做了)。be used to doing sth / be used to sth .是指习惯于做某事.(这里的to 是介词. )1、used to do解释成“过去常常做某事”,后面接动词原形。比如说:I used to play basketball.我过去常常打篮球。 2、am/is/are used to doing解释成“现在习惯做某事”。比如说:I am used to playing basketball.我习惯打篮球。 3、was/were used to doing解释成“过去习惯做某事”。比如说:I was used to playing basketball.我过去习惯打篮球。 4、be used to do解释成“被使用去做某事”。比如说:The water is used to drink. 水被喝。扩展资料(语态)动词和参与此动作的主语之间关系的一个术语。 当主语是动作的发起者(或之一)时,称为主动语态;如果动词不定式的逻辑主语是这个不定式所表示的动作的承受者,不定式一般要用被动语态形式。如:It"s a great honour to be invited to Mary"s birthday party.(不定式作主语是被动语态to be invited是被邀请) It was impossible for lost time to be made up.(不定式作主语) I wish to be sent to work in the country.(不定式作宾语) Can you tell me which is the car to be repaired?(不定式作定语) He went to the hospital to be examined.(不定式作状语) My work is to clean the room every day.(不定式作表语)在There be结构中,修饰主语的不定式可用被动,也可用主动。如:There are still many things to take care of (to be taken care of).但有时两种形式表达的意思不同,如:There is nothing to do now.( We have nothing to do now. ) There is nothing to be done now.(We can do nothing now.)

usedto的翻译usedto的翻译是什么

usedto的意思是:惯于;过去经常。usedto的意思是:惯于;过去经常。usedto的词义辨析是usedto,would。usedto【近义词】accustomed习惯了的。一、英英释义点此查看usedto的详细内容Adjective:inthehabit;"Iamusedtohitchhiking""you"llgetusedtotheidea""...waswonttocomplainthatthisisacoldworld"二、网络解释1.过去常常:167)beusedto习惯于|168)usedto过去常常|169)wake...up唤醒2.usedto的意思2.(过去)经常:useup用完,耗尽;花完|usedto(过去)经常|valueoneselfon自夸3.usedto的反义词3.以前:.崩溃Breakdown|.以前Usedto|.仍未结束It"snotover4.过去常常做某事:2.atthemonent现在;此刻|3.usedto过去常常做某事|4.putdown放下;写下三、例句IweighlessthanIusedto.我的体重比以前轻了。JackusedtoassistMaryinherlessons.杰克过去常常帮助玛丽学习功课。Iusedtogetupearlyandtakeanhour"swalkbeforebreakfast.我过去常常起床很早并且在早餐前散步一小时。Womenusedtothinktheywereontheshelfat30.过去女人一到30岁就认为是过了结婚年龄。四、词汇搭配getusedto习惯于likemotherusedtomake有家庭烹调风味...getusedtoit吃惯苦头becomeusedto适应于justlikemotherusedtomakeit有家庭烹调风味...beusedto被用来(后接动词原形...五、情景对话介绍A:Mary,thisisJoe"sbrotherDavid.玛丽,这是乔的兄弟大卫。B:I"mverygladtomeetyou.我很高兴见到你。C:It"sapleasuretomeetyou.很高兴见到你。B:HowdoyoulikeBeijingsofar?到现在你觉得北京怎么样?C:It"sreallydifferentfromwhatIexpected.与我想象的很不一样。B:Don"tworry.You"llgetusedtoitinnotime.别担心。你很快就会习惯它了。Heating&Air-Conditioning-(暖气和空调)A:Wow,youkeepthisplacecold.哇,你这个地方真够凉快的。B:Yep.It"scoldinthesummer,hotinthewinter.是。冬暖夏凉。A:Yourelectricitybillsmustbeenomp3ous.你的电费可不得了吧。B:Yeah,well,it"sasmallpricetopaytobecomfortable,inmymind.是呀,可是,我觉得要住得舒适这点钱不算什么。usedto是什么意思A:Itisnicetocomeinhereafterarun.跑步完进来这里真不赖。B:Yeah.Thecentralheatingandair-conditioningworkslikeachamp3.是呀,中央冷暖系统简直妙不可言。A:Iusuallydon"tuseitunlessitgetsreallyhot.Ijustopenupsomewindows,andI"mfine.除了真的非常热我是不会用(空调)的。就把窗户打开,这样就很好了。B:Myfriend"sfamilydidthesamething.Icouldnevergetusedtoit,though.我朋友家里也是这样。可是我可不习惯。Jogging-(慢跑)usedto的意思B:Hey,Tom,whattogoforarun?嘿,汤姆,去跑跑步怎么样?A:Nothanks.Iliketoruninthemorning.IranacoupleofmileswhenIwokeuptoday.不了,谢谢你。我喜欢在早上跑步。今天起床后我跑了几英里。usedto的反义词B:Itrytodothat,butIcan"tgetupearlyenough.我也试图这样做,可是起得不够早。A:Icouldn"teitheratfirst,butyougetusedtoit.一开始我也不行,可是慢慢会习惯的。B:It"ssohotatlunchtime;I"dratherruninthemorning.中午的时候太热了,我也宁愿早上跑步。usedto的翻译A:Well,whydon"tyoucometomorrow?I"llstopbyyourhouseonmywayout.那么,你为什么不明天来呢?我出来的时候顺便经过你家。B:Icouldtry,butIcan"tsayforsureifI"llgetupintime.Whattimedoyouwanttogo?我会尽力,但是不能保证一定可以准时起床。你想几点钟去?A:I"llgiveyouacallaround6:00andstopbyaround6:30.六点的时候我给你打个电话,大约6点半的时候我经过你这儿。usedto的翻译B:O.K.,maybeifIhavesomeonetogowith,I"llbeabletogetupintimeforajog.好的,或许如果有个伴的话,我可以按时起床跑跑步。A:Great,I"llseeyouthen.好的,到时见。B:Seeyou.再见。六、词义辨析usedto,would这两个词均含“过去惯常,过去总是”之意。usedto指客观地表示过去的习惯,既可是过去经常发生的动作,又可是过去一向存在的状态,比would通俗,往往含今昔感。would指过去经常发生的行为,主观感情色彩较浓,只表过去惯常行为,既不表状态也不表持续动作。不含“过去如此,现在不再这样”的意味。usedto,beusedto,getusedto这三个词组都包含"used"这个单词。usedto意为“过去常常(做某事)”,后接动词原形。常用来表示今昔对比,含“(现在)已不那样做了”之意。beusedto有两个含义:①“被用来做某事”,后接动词原形。②“习惯于;适应”,后接名词、代词或v-ing,表示一种状态。getusedto意为“习惯于”,表示一个动作,含“由不适应向适应的转变”,其后接名词、代词或v-ing。usedto的相关近义词accustomed、adapted、getusedto、beusedtousedto的相关临近词used、usedstamp、usedcases、usedtodo、usedtires、used-car、Usedbridge、usedlining、usedliquid、usedeffect、used-tire点此查看更多关于usedto的详细信息

usedtodo是什么意思?

used to do意思是:过去常做的事重点词汇:used英[ju:st]释义:adj.习惯的;二手的,使用过的v.用(use的过去式和过去分词)短语:Used Cars二手车;废车;二手汽车词语辨析:be used to,used toadj.(形容词)这两个短语的区别是:1、used to do中的used是动词,to后面接动词不定式;be used to中的used是形容词,to是介词,后接名词、代词或动名词。2、used to表示过去频率极高或十分经常的习惯性的动作,常译成“过去常常做…”,且含有与现在对比的意味;而be used to的意思是“熟悉并接受…”“习惯于…”。3、used to只能用于过去时,而be used to可用于各种时态。

seemedto后面加什么

do。seemedtodo是属于一个固定用法,Seem的用法共包含三种。1、seem后面加不定式,例如heseemedtotellUSsomething。2、Seem后加形容词,例如Heseemedverytired。3、Seem,后面加that引导的从句,Itseemedthatitwasgoingtorain。

beexpectedtodo和besupposedtodo有什么区别

阅读短文中如果嗯,说一件事情expect to读说明还没有做及尚未到来,而不是已发生这里容易设置陷阱,要注意.

staedtler是什么牌子

staedtler施德楼是德国的一个著名文具牌子,全称StaedtlerMars。经营多种书写用具,其中包括绘图铅笔、Leadholder、专业钢笔及标准木质铅笔,同时也设计并生产橡皮、尺、圆规等多种绘图用品。   虽然说现在什么都电脑化,但是我们还是经常需要使用到文具的,文具的品牌比较为人熟知的是晨光,真彩,得力,那么staedtler是什么牌子?下面就跟她时代小编一起来了解下吧!staedtler是什么牌子上海富乐梦新潮文化用品有限公司,施德楼,知名(著名)水性笔品牌,始于1835年德国,世界文化用品销售排名位居前列的国际著名品牌,全球首屈一指的书写制图工具制造商供应商,欧洲较大的铅笔、色铅笔及橡皮擦制造商。施德楼由J.S.Staedtler在1835年创立,经营多种书写用具,其中包括绘图铅笔、Leadholder、专业钢笔及标准木质铅笔,同时也设计并生产橡皮、尺、圆规等多种绘图用品,1975年起,施德楼进军大中华市场,并在黄竹坑工业区成立香港分公司。德国施德楼staedtler是欧洲最富影响力的文化办公用品生产商,也是世界文化用品销售排名位居前列的国际著名品牌。德国施德楼staedtler不断创新推出的新产品从另一个层面满足了新生代文化使用着的消费需求。它填补了国内高档文化用品的空白。该品牌的文化用品已经得到专业美术、设计人士和普通消费者的广泛认可,形成了特有的品牌文化和品牌地位。特别是德国施德楼staedtler31系列多用途记号笔和德国施德楼staedtler526系列橡皮制品更是赢得广大金属、玻璃、塑料、陶瓷、木材、服装等行业客户的信任青睐。中国十大文具品牌排行榜1晨光文具(中国驰名商标)2白雪文具(中国驰名商标,中国名牌,国家免检产品)3得力文具(国家免检产品)4齐心文具(国家免检产品)5真彩文具(国家免检产品)6都都文具(全国最大的文化办公用品连锁零售企业之一)7贝发文具(中国名牌,国家免检产品)8中华铅笔(中国名牌,国家免检产品)9广博文具(中国驰名商标,国家免检产品)10樱花文具(国家免检产品)以上关于staedtler的内容介绍,以及其他相关内容的分享,大家可以作为参考建议,具体根据自己的需求进行选择文具品牌,对于以上问题我们就介绍到这里,希望可以帮助大家staedtler这个品牌。

两头都是金属针头的圆规如何绘图?比如“STAEDTLER施德楼高级金属圆规55050”?

看你的描述,貌似你所说的圆规是工程设计制图上用来精确取距离相等两点的工具,并不是作圆用的

德国STAEDTLER施德楼 925 85 高级金属绘图书写自动铅笔 活动铅笔附有可调节的铅芯浓度显示怎样调?

如果调节的地方很松,可以拆开加点软布放在里面

STAEDTLER施德楼自动铅笔卡铅怎么办

不是牌子货吗。。。。看看小弹簧是不是有点问题。。。网上买的就差评差评他会找你给你解决的!!!

staedtler 134-2b 是2b铅笔吗

专用考试铅笔是2b铅笔 2B铅笔是软性铅笔,受各大专业考试的青睐,经常写有答题卡一律用2B铅笔涂抹。2B铅笔在涂抹一定面积的时候,比较容易涂均匀,而且有金属光泽,且不易断裂。在各种软性铅笔中2B的效果不错而且造价便宜,且韧性好,又容易擦和渲染,绘画时多数好选择。B=BLACK 黑度H=HARD 硬度B数越多铅笔就越黑越软.H数越多就越硬颜色越浅.HB是中间的.铅笔分10B、9B、8B、7B、6B、5B、4B、3B、2B、B、HB、F、H、2H、3H、4H、5H、6H、7H、8H、9H、10HB是偏软墨深,10B最软墨最深,H偏硬墨浅,10H最硬墨最浅。根据实际需要,2B铅笔墨的深度适合考试涂机读卡、容易书写。

staedtler是什么牌子

staedtler施德楼是德国的一个著名文具牌子,全称StaedtlerMars。经营多种书写用具,其中包括绘图铅笔、Leadholder、专业钢笔及标准木质铅笔,同时也设计并生产橡皮、尺、圆规等多种绘图用品。   虽然说现在什么都电脑化,但是我们还是经常需要使用到文具的,文具的品牌比较为人熟知的是晨光,真彩,得力,那么staedtler是什么牌子?下面就跟她时代小编一起来了解下吧!staedtler是什么牌子上海富乐梦新潮文化用品有限公司,施德楼,知名(著名)水性笔品牌,始于1835年德国,世界文化用品销售排名位居前列的国际著名品牌,全球首屈一指的书写制图工具制造商供应商,欧洲较大的铅笔、色铅笔及橡皮擦制造商。施德楼由J.S.Staedtler在1835年创立,经营多种书写用具,其中包括绘图铅笔、Leadholder、专业钢笔及标准木质铅笔,同时也设计并生产橡皮、尺、圆规等多种绘图用品,1975年起,施德楼进军大中华市场,并在黄竹坑工业区成立香港分公司。德国施德楼staedtler是欧洲最富影响力的文化办公用品生产商,也是世界文化用品销售排名位居前列的国际著名品牌。德国施德楼staedtler不断创新推出的新产品从另一个层面满足了新生代文化使用着的消费需求。它填补了国内高档文化用品的空白。该品牌的文化用品已经得到专业美术、设计人士和普通消费者的广泛认可,形成了特有的品牌文化和品牌地位。特别是德国施德楼staedtler31系列多用途记号笔和德国施德楼staedtler526系列橡皮制品更是赢得广大金属、玻璃、塑料、陶瓷、木材、服装等行业客户的信任青睐。中国十大文具品牌排行榜1晨光文具(中国驰名商标)2白雪文具(中国驰名商标,中国名牌,国家免检产品)3得力文具(国家免检产品)4齐心文具(国家免检产品)5真彩文具(国家免检产品)6都都文具(全国最大的文化办公用品连锁零售企业之一)7贝发文具(中国名牌,国家免检产品)8中华铅笔(中国名牌,国家免检产品)9广博文具(中国驰名商标,国家免检产品)10樱花文具(国家免检产品)以上关于staedtler的内容介绍,以及其他相关内容的分享,大家可以作为参考建议,具体根据自己的需求进行选择文具品牌,对于以上问题我们就介绍到这里,希望可以帮助大家staedtler这个品牌。

dedicatedtoyou什么意思

youare:你是……youwill:你会……如果两句连一起的话,可以翻译成,如果你行,你就会成功

RPGVXAceRTPPisrequiredtorunthisgame是什么意思?

意思是需要安装RPGVXAceRTP才能运行这个游戏,详细步骤:1、百度搜索RPGVXAceRTP软件。2、点击进入下载页面。3、打开下载完成的文件夹。4、双击安装程序,点next。5、选择安装的位置。6、查看安装信息,点install即可解决出现:RPGVXAceRTPisrequiredtorunthisgame的问题。

EDTE是什么化学品

乙二胺四乙酸科技名词定义中文名称:乙二胺四乙酸 英文名称:ethylenediaminetetraacetic acid;EDTA 定义:能与Mg2+、Ca2+、Mn2+、Fe2+等二价金属离子结合的一种螯合剂。由于多数核酸酶类和有些蛋白酶类的作用需要Mg2+,故常用做核酸酶、蛋白酶的抑制剂;也可用于去除重金属离子对酶的抑制作用。在化学分析中,乙二胺四乙酸可用于配位滴定。 所属学科:生物化学与分子生物学(一级学科);方法与技术(二级学科) 本内容由全国科学技术名词审定委员会审定公布 百科名片 乙二胺四乙酸乙二胺四乙酸能与Mg2+、Ca2+、Mn2+、Fe2+等二价金属离子结合的一种螯合剂。由于多数核酸酶类和有些蛋白酶类的作用需要Mg2+,故常用做核酸酶、蛋白酶的抑制剂;也可用于去除重金属离子对酶的抑制作用。目录品名分子式分子量理化性质用途EDTA的制备实验室制法生产原理工艺流程主要设备操作工艺质量指标质量检验安全措施品名 分子式 分子量 理化性质 用途 EDTA的制备 实验室制法 生产原理 工艺流程 主要设备 操作工艺 质量指标 质量检验 安全措施展开 编辑本段品名 乙二胺四乙酸(Ethylene Diamine Tetraacetic Acid) 英文别名:(Ethylenedinitrilo)tetraacetic acid disodium salt; Edetic acid disodium salt; EDTA disodium salt; Edetic acid~EDTA; EDTA, free acid Ethylenediamine tetraacetic acid, free acid; EDTA, 500 mM Solution, pH 8.0,ULTROL Grade; EDTA-SOLUTION; EDTA; Edetic acid; EDTA ACID 简称:EDTA CAS NO: 60-00-4 EINECS登录号: 200-449-4 [1] 编辑本段分子式 C10H16O8N2编辑本段分子量 292.25(按1989年国际相对原子质量)编辑本段理化性质 白色无臭无味、无色结晶性粉末,熔点240℃(分解)。不溶于冷水、醇及一般有机溶剂,微溶于热水,溶于氢氧化钠,碳酸钠及氨的溶液中,能溶于160份100℃沸水。其碱金属盐能溶于水。编辑本段用途 EDTA是一种重要的络合剂。EDTA用途很广,可用作彩色感光材料冲洗加工的漂白定影液,染色助剂,纤维处理助剂,化妆品添加剂,血液抗凝剂,洗涤剂,稳定剂,合成橡胶聚合引发剂,EDTA是螯合剂的代表性物质。能和碱金属、稀土元素和过渡金属等形成稳定的水溶性络合物。除钠盐外,还有铵盐及铁、镁、钙、铜、锰、锌、钴、铝等各种盐,这些盐各有不同的用途。此外EDTA也可用来使有害放射性金属从人体中迅速排泄起到解毒作用。也是水的处理剂。 EDTA还一种重要的指示剂,可是用来滴定金属镍,铜等 ,用的时候要与氨水一起使用,才能起指示剂的作用。编辑本段EDTA的制备 由乙二胺与一氯乙酸在碱性溶液中缩和或由乙二胺、氰化钠和甲醛水溶液作用而得。编辑本段实验室制法 称取一氯乙酸94.5g(1.0mol)于1000mL圆底烧瓶中,慢慢加入50%碳酸钠溶液,直至二氧化碳气泡发生为止。加入15.6g(0.2mol)乙二胺,摇匀,放置片刻,加入40%NaOH溶液100mL,加水至总体积为600mL左右,装上空气冷却回流装置,于50℃水浴上保温2h,再于沸水浴上保温回流4h。取下烧瓶,冷却后倒入烧怀中,用浓HCl调节pH至1.2,则有白色沉淀生成,抽滤,得EDTA粗品。精制后得纯品。编辑本段生产原理 由乙二胺与氯乙酸钠反应后,经酸化制得: 也可由乙二胺与甲醛、氰化钠反应得到四钠盐,然后用硫酸酸化得到:工艺流程 原料配比(kg/t) 氯乙酸(95%) 2000 烧碱(工业品) 880 乙二胺(70%) 290 盐酸(35%) 2500 〔若用硫酸代替盐酸,则用硫酸(98%)1200kg〕主要设备 成盐锅 缩合反应罐 酸化锅 水洗锅 离心机 贮槽 干燥箱操作工艺 在800L不锈钢缩合反应罐中,加入100kg氯乙酸、100kg冰及135kg 30%的氢氧化钠溶液,在搅拌下再加入18kg 83%~84%的乙二胺。在15℃保温1h后,以每次10L分批加入30%氢氧化钠溶液,每次加入后待酚酞指示剂不显碱性后再加入下一批,最后反应物呈碱性。在室温保持12h后,加热至90℃,加活性炭,过滤,滤渣用水洗,最后溶液总体积约600L。加浓盐酸至pH不3,析出结晶。过滤,水洗至无氯根反应。烘干,得EDTA64kg。收率95%。也可以在较高温度条件下进行。例如,采用如下摩尔配比:乙二胺:氯乙酸:氢氧化钠=1∶4.8∶4.8,反应温度为50℃,反应6h,再煮沸2h,反应产物用盐酸酸化即可得到EDTA结晶,收率82%~90%。质量指标 含量 ≥90% 铁(Fe) ≤0.01% 灼烧残渣 ≤0.15% 重金属(Pb2+) ≤0.001% 在Na2CO3中溶解度 合格质量检验 (1)含量测定 采用配位滴定法。先将乙二胺四乙酸用KOH配制成pH为12.0~13.0的试样液。以酸性铬蓝K和萘酚绿作混合指示剂,用试样液滴定于120℃干燥过的分析纯CaCO3,当溶液由紫红色变为蓝绿色即为终点。 (2)灼烧残渣测定 按常规方法进行。安全措施 (1)生产中使用氯乙酸、乙二胺等有毒或腐蚀性物品,生产设备应密闭,操作人员应穿戴劳保用品,车间保持良好通风状态。 (2)产品密封包装,贮于通风、干燥处,注意防潮、防晒,不宜与碱性化学物品混贮。

请帮忙辨别苹果4s港行16G黑色的真假!型号MD235ZP 序列号DQGHC56EDTC0,刚买的4300元

产品型号IPHONE 4S 16GB 黑色产品序列号(SN) DQGHC56EDTC0移动设备IMEI码 013057009424800iOS版本 5.1.1销售地 中国香港特区销售类型 T1(ATT非合约机器)购买时间 2012年02月25日过保时间 2013年02月25日激活状态 已激活 最近购买则是翻新机,满意请采纳

运用Executors.newScheduledThreadPool的任务调度怎么解决

Timer相信大家都已经非常熟悉 java.util.Timer 了,它是最简单的一种实现任务调度的方法,下面给出一个具体的例子:清单 1. 使用 Timer 进行任务调度package com.ibm.scheduler;import java.util.Timer;import java.util.TimerTask;public class TimerTest extends TimerTask {private String jobName = "";public TimerTest(String jobName) {super();this.jobName = jobName;}@Overridepublic void run() {System.out.println("execute " + jobName);}public static void main(String[] args) {Timer timer = new Timer();long delay1 = 1 * 1000;long period1 = 1000;// 从现在开始 1 秒钟之后,每隔 1 秒钟执行一次 job1timer.schedule(new TimerTest("job1"), delay1, period1);long delay2 = 2 * 1000;long period2 = 2000;// 从现在开始 2 秒钟之后,每隔 2 秒钟执行一次 job2timer.schedule(new TimerTest("job2"), delay2, period2);}}Output:execute job1execute job1execute job2execute job1execute job1execute job2使用 Timer 实现任务调度的核心类是 Timer 和 TimerTask。其中 Timer 负责设定 TimerTask 的起始与间隔执行时间。使用者只需要创建一个 TimerTask 的继承类,实现自己的 run 方法,然后将其丢给 Timer 去执行即可。Timer 的设计核心是一个 TaskList 和一个 TaskThread。Timer 将接收到的任务丢到自己的 TaskList 中,TaskList 按照 Task 的最初执行时间进行排序。TimerThread 在创建 Timer 时会启动成为一个守护线程。这个线程会轮询所有任务,找到一个最近要执行的任务,然后休眠,当到达最近要执行任务的开始时间点,TimerThread 被唤醒并执行该任务。之后 TimerThread 更新最近一个要执行的任务,继续休眠。Timer 的优点在于简单易用,但由于所有任务都是由同一个线程来调度,因此所有任务都是串行执行的,同一时间只能有一个任务在执行,前一个任务的延迟或异常都将会影响到之后的任务。回页首ScheduledExecutor鉴于 Timer 的上述缺陷,Java 5 推出了基于线程池设计的 ScheduledExecutor。其设计思想是,每一个被调度的任务都会由线程池中一个线程去执行,因此任务是并发执行的,相互之间不会受到干扰。需要注意的是,只有当任务的执行时间到来时,ScheduedExecutor 才会真正启动一个线程,其余时间 ScheduledExecutor 都是在轮询任务的状态。清单 2. 使用 ScheduledExecutor 进行任务调度package com.ibm.scheduler;import java.util.concurrent.Executors;import java.util.concurrent.ScheduledExecutorService;import java.util.concurrent.TimeUnit;public class ScheduledExecutorTest implements Runnable {private String jobName = "";public ScheduledExecutorTest(String jobName) {super();this.jobName = jobName;}@Overridepublic void run() {System.out.println("execute " + jobName);}public static void main(String[] args) {ScheduledExecutorService service = Executors.newScheduledThreadPool(10);long initialDelay1 = 1;long period1 = 1;// 从现在开始1秒钟之后,每隔1秒钟执行一次job1service.scheduleAtFixedRate(new ScheduledExecutorTest("job1"), initialDelay1,period1, TimeUnit.SECONDS);long initialDelay2 = 1;long delay2 = 1;// 从现在开始2秒钟之后,每隔2秒钟执行一次job2service.scheduleWithFixedDelay(new ScheduledExecutorTest("job2"), initialDelay2,delay2, TimeUnit.SECONDS);}}Output:execute job1execute job1execute job2execute job1execute job1execute job2清单 2 展示了 ScheduledExecutorService 中两种最常用的调度方法 ScheduleAtFixedRate 和 ScheduleWithFixedDelay。ScheduleAtFixedRate 每次执行时间为上一次任务开始起向后推一个时间间隔,即每次执行时间为 :initialDelay, initialDelay+period, initialDelay+2*period, …;ScheduleWithFixedDelay 每次执行时间为上一次任务结束起向后推一个时间间隔,即每次执行时间为:initialDelay, initialDelay+executeTime+delay, initialDelay+2*executeTime+2*delay。由此可见,ScheduleAtFixedRate 是基于固定时间间隔进行任务调度,ScheduleWithFixedDelay 取决于每次任务执行的时间长短,是基于不固定时间间隔进行任务调度。回页首用 ScheduledExecutor 和 Calendar 实现复杂任务调度Timer 和 ScheduledExecutor 都仅能提供基于开始时间与重复间隔的任务调度,不能胜任更加复杂的调度需求。比如,设置每星期二的 16:38:10 执行任务。该功能使用 Timer 和 ScheduledExecutor 都不能直接实现,但我们可以借助 Calendar 间接实现该功能。清单 3. 使用 ScheduledExcetuor 和 Calendar 进行任务调度package com.ibm.scheduler;import java.util.Calendar;import java.util.Date;import java.util.TimerTask;import java.util.concurrent.Executors;import java.util.concurrent.ScheduledExecutorService;import java.util.concurrent.TimeUnit;public class ScheduledExceutorTest2 extends TimerTask {private String jobName = "";public ScheduledExceutorTest2(String jobName) {super();this.jobName = jobName;}@Overridepublic void run() {System.out.println("Date = "+new Date()+", execute " + jobName);}/*** 计算从当前时间currentDate开始,满足条件dayOfWeek, hourOfDay,* minuteOfHour, secondOfMinite的最近时间* @return*/public Calendar getEarliestDate(Calendar currentDate, int dayOfWeek,int hourOfDay, int minuteOfHour, int secondOfMinite) {//计算当前时间的WEEK_OF_YEAR,DAY_OF_WEEK, HOUR_OF_DAY, MINUTE,SECOND等各个字段值int currentWeekOfYear = currentDate.get(Calendar.WEEK_OF_YEAR);int currentDayOfWeek = currentDate.get(Calendar.DAY_OF_WEEK);int currentHour = currentDate.get(Calendar.HOUR_OF_DAY);int currentMinute = currentDate.get(Calendar.MINUTE);int currentSecond = currentDate.get(Calendar.SECOND);//如果输入条件中的dayOfWeek小于当前日期的dayOfWeek,则WEEK_OF_YEAR需要推迟一周boolean weekLater = false;if (dayOfWeek < currentDayOfWeek) {weekLater = true;} else if (dayOfWeek == currentDayOfWeek) {//当输入条件与当前日期的dayOfWeek相等时,如果输入条件中的//hourOfDay小于当前日期的//currentHour,则WEEK_OF_YEAR需要推迟一周if (hourOfDay < currentHour) {weekLater = true;} else if (hourOfDay == currentHour) {//当输入条件与当前日期的dayOfWeek, hourOfDay相等时,//如果输入条件中的minuteOfHour小于当前日期的//currentMinute,则WEEK_OF_YEAR需要推迟一周if (minuteOfHour < currentMinute) {weekLater = true;} else if (minuteOfHour == currentSecond) {//当输入条件与当前日期的dayOfWeek, hourOfDay,//minuteOfHour相等时,如果输入条件中的//secondOfMinite小于当前日期的currentSecond,//则WEEK_OF_YEAR需要推迟一周if (secondOfMinite < currentSecond) {weekLater = true;}}}}if (weekLater) {//设置当前日期中的WEEK_OF_YEAR为当前周推迟一周currentDate.set(Calendar.WEEK_OF_YEAR, currentWeekOfYear + 1);}// 设置当前日期中的DAY_OF_WEEK,HOUR_OF_DAY,MINUTE,SECOND为输入条件中的值。currentDate.set(Calendar.DAY_OF_WEEK, dayOfWeek);currentDate.set(Calendar.HOUR_OF_DAY, hourOfDay);currentDate.set(Calendar.MINUTE, minuteOfHour);currentDate.set(Calendar.SECOND, secondOfMinite);return currentDate;}public static void main(String[] args) throws Exception {ScheduledExceutorTest2 test = new ScheduledExceutorTest2("job1");//获取当前时间Calendar currentDate = Calendar.getInstance();long currentDateLong = currentDate.getTime().getTime();System.out.println("Current Date = " + currentDate.getTime().toString());//计算满足条件的最近一次执行时间Calendar earliestDate = test.getEarliestDate(currentDate, 3, 16, 38, 10);long earliestDateLong = earliestDate.getTime().getTime();System.out.println("Earliest Date = "+ earliestDate.getTime().toString());//计算从当前时间到最近一次执行时间的时间间隔long delay = earliestDateLong - currentDateLong;//计算执行周期为一星期long period = 7 * 24 * 60 * 60 * 1000;ScheduledExecutorService service = Executors.newScheduledThreadPool(10);//从现在开始delay毫秒之后,每隔一星期执行一次job1service.scheduleAtFixedRate(test, delay, period,TimeUnit.MILLISECONDS);}}Output:Current Date = Wed Feb 02 17:32:01 CST 2011Earliest Date = Tue Feb 8 16:38:10 CST 2011Date = Tue Feb 8 16:38:10 CST 2011, execute job1Date = Tue Feb 15 16:38:10 CST 2011, execute job1

bequalifiedto和bequalifiedfor的区别

一般而言,be qualified to do sth,后跟不定式。例如:I was not qualified to comment. be qualified for sth.,后面跟表示职务的名词。例如:She is well qualified for the job.

heisdeterminedtodelaynomore成分

He is determined to delay no more.主语是he is determined是系动词表语。

themanplayedthepianowell

the piano 是宾语
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