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哪位高手能详解下 PHP session_set_save_handler() 。 往往会写这样一个类,搜索了写答案,但不详细

2023-07-14 19:12:05
共2条回复
瑞瑞爱吃桃

我有代码。但是我的报错。好像是配置文件哪儿没弄对:

Warning: Unknown: Unknown session.serialize_handler. Failed to encode session object. in Unknown on line 0

类的代码:

class session{

private static $handler=null;

private static $ip=null;

private static $lifetime=null;

private static $time=null;

private static function init($pdo){

self::$handler=$handler;

self::$ip = !empty($_SERVER["REMOTE_ADDR"])?$_SERVER["REMOTE_ADDR"]:unknown;

self::$lifetime=ini_get("session.gc_maxlifetime");

self::$time=time();

}

static function start(PDO $pdo){

self::init($pdo);

session_set_save_handler(

array(__CLASS__,"open"),

array(__CLASS__,"close"),

array(__CLASS__,"read"),

array(__CLASS__,"write"),

array(__CLASS__,"destroy"),

array(__CLASS__,"gc")

);

session_start();

}

public static function open($path,$name){

return true;

}

public static function close(){

return true;

}

public static function read($PHPSESSID){

$sql="select PHPSESSID,update_time,client_ip,data from session where PHPSESSID= ?";

$stmt=self::$handler->prepare($sql);

$stmt->execute(array($PHPSESSID));

if(!$result=$stmt->fetch(PDO::FETCH_ASSOC)){

return "";

}

if(self::$ip != $result["client_ip"]){

self::destroy($PHPSESSID);

return "";

}

if(($result["update_time"] + self::$lifetime) < self::$time){

self::destroy($PHPSESSID);

return "";

}

return $result["data"];

}

public static function write($PHPSESSID,$data){

$sql="select PHPSESSID,update_time,client_ip,data from session where PHPSESSID= ?";

$stmt=self::$handler->prepare($sql);

$stmt->execute(array($PHPSESSID));

if($result=$stmt->fetch(PDO::FETCH_ASSOC)){

if($result["data"] != $data || self::$time > ($result["update_time"]+30)){

$sql="update session set update_time=?,data=? where PHPSESSID=?";

$stmt=self::$handler->prepare($sql);

$stmt->execute(array(self::$time,$data,$PHPSESSID));

}

}else{

if(!empty($data)){

$sql="insert into session(PHPSESSID,update_time,client_ip,data values(?,?,?,?))";

$sth=self::$handler->prepare($sql);

$sth->execute(array($PHPSESSID,self::$time,self::$ip,$data));

}

}

return true;

}

public static function destroy($PHPSESSID){

$sql="delete from session where PHPSESSID=?";

$stmt=self::$handler->prepare($sql);

$stmt->execute(array($PHPSESSID));

return true;

}

public static function gc($lifetime){

$sql="delete from session where update_time < ?";

$stmt=self::$handler->prepare($sql);

$stmt->execute(array(self::$time-$lifetime));

return true;

}

}

try{

$pdo=new PDO("mysql:host=localhost;dbname=shoping","root","123456");

}catch(PDDException $e){

echo $e->getMessage();

}

session::start($pdo);

coco

PHP有内置的操作 session 的save_handler。通过 session_set_save_handler 是方便开发人员自己定义相关的处理方式,比如我们要保存 session 到数据库,或者是我们在 session 开启时要做些自己想要的操作等等。

1、session_start 调用时,或者 session 自动启动时,PHP将会调用 open 和 read 这两个 save_handler,这不是有人说的,而是PHP文档里说的。

2、要使用session,每个脚本页面需要 session_start。

3、session_set_save_handler 定义好之后,根据不同 session 操作,会调用不同的方法。比如上面说的 session_start 就会使用 open 和 read 两个处理方法。

4、这个问题看的不是很明白,无法回答。

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英语中的 “貌合神离” 现象 英 语 中 有 些 语 言 现 象, 形 式 上 表 达 一 种 意 思,实际含 义 却 又 是 另 一 个 意 思。 遇 到 这 种 现 象, 如 果 我 们 “以 貌 取 人”, 就 会 被它 们 的“ 阳奉 阴 违” 所 迷 惑。 所 以, 既 要 了 解 形 式, 又 要 了 解 含 义, 才 能 达 到 完 美 的统一。 本 文 试 将常见的 几 种 此 类 现 象 浅 谈 如 下 :一、 比 较 级 形 式 , 最 高级含义。下面这些句子看起来是比较级,可它们表达的意思却是最高级:1, How beautifully she sings! I have never heard a better voice. (NMET96, 11) 她 唱 得 多 好 啊! 这 是 我 听 到 的 最 美 的 声 音。2,-------A re you satisfied with her answer ? -------Not at all. It couldn"t have been worse. (Shanghai 97, 26) ------- 你 满意他的 回 答 吗? ------- 一点也不。 最 糟 。3,Bamboo probably has more uses than the other plant in the world . 竹 子 也 许 是 世 界 上 用 途 最 多 的植物。4,Many years ago there lived an Emperor who cared more for fine new clothes than for anything else. 许 多 年 前 , 有 一 个 皇 帝 , 他 最 喜欢华丽 的 新 装。二、 肯 定 形 式, 否 定 含 义。别看下面的句子没有not,可它们表达的含义却是否定句的含义:1,The new teacher speaks English too quickly for me to understand. 新 来 的 英 语 老 师 讲 英 语 太 快, 我 听 不 懂。2,I would rather stay at home than go out . 我 宁 愿 呆 在 家 里, 不 愿 外 出。3,The big fire is beyond control. 大 火 无 法 控 制。4,We watch the train leave the station until it is out of sight. 我 们 望 着 火 车 离 开 车 站 直 到 我 们 看 不 见。5,I failed to attend the meeting because I missed the bus. 我 没 能 参 加 会 议 因 为 我 没 搭 上 车。 三、 并 列 形 式, 从属含义。下面的句子虽然有and,却并不表示前后就是并列关系:1, It is nice / lovely / good / fine and hot in Summer in Wuhan. 武 汉 夏 天 非 常 炎 热。 说 明: 在 nice and┅ 结 构 中,nice 等对and 后 的 词 起 修 饰 作 用, 而 不 表 示 并 列 关 系。 上 句 不可译为: 武 汉 夏 天 天 气 既 好 又 热。2,Zhang yang , go and fetch me some chalk. 说 明:go 和fetch 并 不 表 示 并 列 关 系, 而 是 连 动 关 系。 此 句 相 当 于:go to fetch me some chalk.3,Give him an inch ,and he will take a mile. 得 寸 进 尺。 说 明:and 在 此 句 中 表 示 假 设 关 系。此句相 当 于:If you give him an inch, he "ll take a mile. 四、 副 词 形 式, 形 容 词 含 义。 下 面 这 些 词 虽 然 以 -ly 结尾,但却 是 形 容 词:lovely 可 爱 的;美好的 friendly 友好的 lonely 孤 独 的;荒凉的 monthly 每 月 的sadly 悲 伤 的;伤心的 Ugly 丑 陋 的; 可 憎 的 五、 形 容 词 形 式, 名 词 含 义。 下 面 这 些 词虽然以-ful 结 尾, 但 却是名词(很多人甚至有些语法书上都误认为它们是形容词):handful 满把;一手 mouthful 满口;一口cupful 满杯;一杯 basketful 满 篮; 一 篮shelf-ful 满架;一架 roomful 满 屋; 一 屋E.g. :Chaplin sits down at the table and eats the shoe with a knife and fork, enjoying every mouthful. (SEFCII<A>L19) 卓 别 林 坐 在 桌 子 边 , 手 拿 刀 叉 吃 皮 鞋, 一 大 口 一 大 口 地吃得津 津 有 味。 六、 形 式 是人 的 名 词 , 表 示 物的含义。下面这些词虽然以-er 结尾,倘若你以为指的是人,可就要闹笑话:washer 洗衣机 cooker 厨具 laughter 笑声 opener 起 子screw-driver 螺丝刀 recorder 录 音 机 七、 主 动 形 式, 被 动含义。下面这些句子虽然表示被动的意义,却不用被动形式:1, only one of the books is worth reading. 这 些 书 当 中 只 有 一 本 值 得 读。2, The motorbike I bought last month needs / wants / requires repairing. 我 上 个 月 买 的 摩 托 需 要 修 理。3, I have a lot of work to do this Sunday. 这 个 星 期 天 我 有 很 多 事 要 做。4, The machine is difficult to operate. 这 台 机 器 难 以 操 作。5, The box is too heavy to carry. 箱 子 太 重 了背不动。6,--Do you like the material ? -----Yes, it feels very soft. (NMET94, 26) 八、 单 数 形 式, 复 数 含 义。1,Everybody is here . 所 有 的 人 都 在 这 儿。2,About 80% of the Chinese population are peasants . 中 国 大 约80 % 的 人 口 是 农 民。3,all the cattle of his family are in the shed. 他 家 所 有 的 牛 都 在 牛 圈 里。4,An Englishman owned the most milu deer in the world . 有 个 英 国 人 拥 有 世 界 上 最 多 的 麋 鹿。 九、 复 数 形 式, 单 数 含 义。1, A library with five thousand books is offered to the nation as a gift. (MET90, 20) 一 个 拥 有5000 册 图 书 的 图 书 馆 被 作 为 礼 物 赠 送 给 这个国家。( 说 明: 这 种 由with ,like ,as well as, but ,besides ,except 等 引 起 的介 词 结 构 作 定 语对主语 的 单 复 数 不 影 响, 主 谓 一 致 要 根 据 其 前 主 语 单 复 数 确 定。)2,Each of the students ,working hard at his or her lessons , hopes to go to university. (Shanghai 98, 15) 每 一 个学 习 努 力 的 学 生 都 希 望 考上大学。3, 表 示 学 问 、 学 科 的 词:politics 政治(学) physics 物 理 ( 学) 十、 答 应 形 式, 拒绝含义。你要是以为人家说下面的话是答应你,那可就要受人取笑了:1, ------Would you like to come to dinner tonight? ------I"d like to, but I"m too busy. (NMET94, 14) ------ 今 晚 来 吃 晚 饭 , 好 吗? ------ 我 很 乐 意, 可 是 太 忙 了。 ( 表 面 很 乐 意 接 受 , 实际上是 委 婉 拒 绝。)2,------Can I borrow your dictionary ? -------Certainly if I am not using it. ------- 我 能 借 一 下 你 的 字 典 吗? ------ 如 果 我 不 用 当 然 可 以。( 表 面 爽 快 应 允, 实 际 上 不 肯。)3, ------Would you mind if I smoked in the office next door ? ------I"m afraid all these offices are non-smoking offices. (SEFCII<A>L5) ------ 你 介 意 我 在 隔 壁 房 间 抽 烟 吗? ------ 我 们 这 儿 所 有 的 办 公 室 都 是 无 烟 办 公 室。( 虽 然不见一“No”, 可确 已委 婉 拒 绝。) 十 一、 疑 问 句 形 式, 肯 定句含义。别看下面这些句子有问号,可表示的却是肯定意义:1,-------It is a lovely day ,isn"t it ? - ------Yes. Isn"t it? -------- 今 天 天 气 真 好 啊! -------- 是 啊, 真 是 好 天 气!2,Pardon ? 请 再 说 一 遍。3,-----Sorry, I forget to hand in my composition . ------Didn"t I tell you yesterday? / Are you in your senses? ------- 对 不 起, 我 忘 了 交 我 的 作 文。 ------ 我 昨 天 特 地 告 诉 过 你!/ 你这糊涂 蛋!
2023-07-14 18:09:131

failed to fetch是什么意思

未能取回
2023-07-14 18:09:492

failed to fetch是什么意思 failed to fetch http怎么解决

fail to do sth 做某事失败了fetch 是取回的意思翻译为 没能取回纯手打请采纳
2023-07-14 18:09:571

automate意外错误.failedtofetch

解决方法如下:修改DNS:nameserver8.8.8.8nameserver8.8.4.4然后重启网络服务:sudoetc/init.d/networkingrestart再次执行sudoapt-getupdate命令,结果一切正常。
2023-07-14 18:10:041

解决Cydia 出现的Failed To Fetch问题

解决: 删除cydia中空白的软件源,有一个 666什么的。 删掉乐网app,关闭vpn, 重启Cydia, 重新添加源apt.saurik.com/cydia
2023-07-14 18:10:111

failed to fetch是什么意思 failed to fetch http怎么解决

  手机越狱成功后添加源时经常会出现failed to fetch http然后后面一连串英文,这条信息就是告诉你无法找到地址。之所以会出现这个问题,主要还是和 UltraSn0w 源有关。  目前因为某些原因,UltraSn0w 源可能出现了问题,所以用户使用过程中会遇到错误,显示提示“Some index files failed to download, they have been ignored, or old ones used instead.”。  从技术层面上说来它不是什么大问题,但是会让用户感觉不好。好在要解决这个问题,用户只需删除 UltraSn0w 源就可以了。
2023-07-14 18:10:181

TypeError: Failed to fetch

复制请求 copy as fetch 粘贴到浏览器控制台运行报错 Uncaught (in promise) TypeError: Failed to fetch 把请求头 "cache-control": "no-cache" 、 "pragma": "no-cache" 删了
2023-07-14 18:10:261

用英语写一篇耳熟能详的故事

你好,很高兴为你解答,答案如下:郑人买履:  once in the ancient kingdom of zheng there was a man who wanted to buy himself a pair of shoes. he took the measurement of his own feet with a piece of string. then he went to the market.  he was looking at some shoes at the shoe-maker"s when he realized he had left the measurement at home. he put down the shoes and rushed home to fetch it. by the time he returned with the measurement the market had been closed. so he failed to get his shoes.  somebody asked him, "why didn"t you just try the shoes on your feet?" he answered, "i would rather trust the measurement than my feet."希望我的回答对你有帮助,满意请采纳。
2023-07-14 18:10:351

英语学习中的顺口溜有哪些?

1.  Good, better, best,  never let it rest,  till good is better,  and better is best.  2.  I shall not see the shadows,  I shall not feel the rain,  I shall not hear the nightingale  Sing on as if in pain,  And dreaming through the twilight,  That doth not rise nor set,  Happy I may remember,  And Haply I may forget.  3.  Evening red and morning gray,  Send the traveler on his way,  Evening gray and morning red,  Bring the rain upon his head.  4.  what is pink?  A rose is pink,  By the fountain"s brink,  What is blue? The sky is blue.  Where the clouds float through,  What is yellow? Pears are yellow,  Rich, ripe and mellow.  What is green? The grass is green,  With small flowers among,  What is orange? Why, An orange,  Just an orange.  5,  The moon is in the sky,  It is far and high,  Let"s go to the moon,  Let"s ride a rocket and fly.  6.  Twinkle, twinkle, little star,  how I wonder what you are,  Up above the world so high,  Like a diamond in the sky.  7.  Spring is gay with flower and song;  Summer is hot and leave cold alone,  Autumn is rich with fruit and grain,  Winter snows and brings new year too.  8.  There was a lady from Rica,  who rode with a smile on a tiger,  they returned from a ride,  with a lady inside,  and the smile on the face of the tiger.  9.  In winter I got up at night,  And dress by yellow candle light,  In summer quite the other way,  I have to go to bed by day.  10.  One, two, three, four,  mary at the cottage door,  Five, six, seven, eight,  Eating cherries off a plate.  11.  There was a young man from Leeds,  Who swallowed a packet of seeds.  Within just an hour,  His nose was a flower,  And his head was a riot of weeds.  12.  I like honey all my life,  I paste them on my knife,  They are always very stiff,  It is hard to take them off.  13.  There was a young man from Quebec,  who wrapped both his legs round his neck,  But then he forgot  How to undo the knot,  And now he is an absolute wreak!  14.  Peter, peter, pumpkin-eater,  had a wife and failed to keep her  put her into a pumpkin shell  There he kept her very well!  15.  The fair breeze blew,  the white foam flew;  the furrow followed free,  we were the first to burst—  into the silent sea.  16.  She stood at the bridge at the midnight,  her lips were all aquiver;  she gave a cough, her leg fell off,  and floated down the river!  17.  Jack and Jill went up the hill,  to fetch a pail of water.  Jack fell down and broke his crown,  And jill came tumbling after.  18.  Under the greenwood tree  who loves to lie with me,  and tune his merry note unto  the sweet bird"s throat,  come hitcher, come hitcher,  come hitcher, here shall he see  no enemy  but winter and rough weather.  19.  When the wind is in the East  It"s good neither for man nor beast;  When the wind is in the North  The skillful fisher goes not forth;  When the wind is in the south  It blows the bait in the fish"s mouth;  When the wind is in the west  Then it"s in its very best.  20.  One potato, two potato, three potato, four,  Five potato, six potato, seven potato, more.
2023-07-14 18:10:432

英语周报七年级下新目标版34期的答案

故事: 很多年前, 一个爸爸和一个妈妈想休假,所以他们决定晚上去城镇。他们叫来最信任一个人来照看孩子。当保姆来的时候,他们的连个孩子已经在床上睡着了。所以保姆只是看了看孩子是否睡的好,就坐下了。 深夜,保姆觉得无聊就想去楼下看电视。但是她看不了,因为楼下没有电视(因为孩子的父母不希望他们的孩子看太多垃圾)。她就打电话给孩子的父母,问是否可以在他们的卧室看电视,当然孩子的父母同意了。 但保姆又想要最后一个请求。 她问是否可以用毯子或者衣服盖住那小丑雕像,因为那使她感到很害怕。 电话沉默了一会。 (此时爸爸在和保姆通话) 他说:带孩子离开房间…… 我们将会叫警察……我们从来没有什么小丑雕像。 那小丑很可能是一个从监狱逃出来的杀人犯。 电话里沉默了一会儿。 (正在跟保姆通话的孩子的父亲)说:带上孩子们,离开房子……我们会通知警察……我们没有一个小丑雕像…… 孩子们和保姆被小丑谋杀了。 结果是,小丑是一个从监狱里逃出来的杀人犯。 如果你不在5分钟内转发这个贴子,这个小丑在凌晨3点时将会拿着刀站在你的床前。 ~~~~~ 赞同0| 评论(2)
2023-07-14 18:11:114

英语短文故事

1.313
2023-07-14 18:11:218

为什么带有ibm_db模块的python脚本打包后无法执行

import ibm_db1 在打包之前务必找到第三方库的包,把包复制到到跟test.py同目录下2 找到第三方库的包,如使用了requests,可以使用查找的方式,找到这个包在哪里,然后把它复制到test.py同目录下
2023-07-14 18:11:391

python3中使用urllib进行https请求

刚入门python学习网络爬虫基础,我使用的python版本是python3.6.4,学习的教程参考 Python爬虫入门教程 python3.6的版本已经没有urllib2这个库了,所以我也不需要纠结urllib和urllib2的区别和应用场景 参考这篇官方文档 HOWTO Fetch Internet Resources Using The urllib Package 。关于http(s)请求一般就get和post两种方式较为常用,所以写了以下两个小demo,url链接随便找的,具体场景具体变化,可参考注释中的基本思路 POST请求: GET请求: 注意, 使用ssl创建未经验证的上下文,在urlopen中需传入上下文参数 urllib.request.urlopen(full_url, context=context) 这是Python 升级到 2.7.9 之后引入的一个新特性,所以在使用urlopen打开https链接会遇到如下报错: ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:777) 所以,当使用urllib.urlopen打开一个 https 链接时,需要先验证一次 SSL 证书 context = ssl._create_unverified_context() 或者或者导入ssl时关闭证书验证 ssl._create_default_https_context =ssl._create_unverified_context
2023-07-14 18:11:461

创新英语优秀范文?

  阅读优秀范文,是我们提升写作水平的过程中必不可少的一个步骤。下面是我给大家整理的,供大家参阅!   篇1:Failure and Success   An ancient Chinese adage says, “Failure is the mother of success”. It tells us that failure teaches people how to succeed. Those philosophers are always right. No one is a winner for life-long, and thus everybody, even the most successful ones, has failed in sake of for the sake of 8   various reasons.   The story of Mr. Abraham Lincoln, the previous president of America, offers us a proper example. Mr. Lincoln started his political journey in his early 20 20s, but the fate tricked him. Among his first ten attempts of running for elections for political positions like 去掉 Senator and or the Head of the State, Mr. Lincoln only won once, and then numerous failures stepped up after that. But he never stopped. Finally, in his 50 50s, Mr. Lincoln became the president of America. His failures led to his success. All the valuable experiences, including the mistakes, showed him how to succeed. Then, it is obvious that failure can help not only Mr. Lincoln but also everyone to gain experiences and to avoid mistakes. Thus success es.   Despite the reason described in the above paragraph, another subtle one also serves to the topic. Failure forces people to explore new means to success. KFC is a case in point. As everybody knows, KFC"s origins were in America, but it was not as successful as McDonald. But when KFC came to China, it became popular in one night overnight. People, especially kids, loved it. KFC has found its new way in China. Situations must be the same to everyone if they explore new things in their failures.   Taking into account all the relevant factors that affect and contribute to the topic, we may safely conclude that, failure, indeed, leads people all the way to success.   篇2:Informal Higher Education Serves Better   Although most students are still fighting for the diploma in universities after graduation from high school, it has been a clear trend that more and more students choose to start their working career earlier and receive informal higher education, which in my opinion, serves better to build more Informal higher education offers better opportunities to adapt to social life for students, and help them understand better the reality of their social munity and responsibilities they are to take. capabilities that only speak. They understand and adapt better to the pressure of life"s difficulties which in universities could hardly be realized.   Secondly, after experiencing real working life, those who attend correspondence courses would know better what kind of knowledge and abilities they must master, which definitely help them in 9   future advancement and career choices. Suppose you"re a graduate from high school and bee an assist of a car repairing workshop. Then you"ll have to know how the engine and different parts of the car works and how to deal with various emergent problems. fit to you. However, in universities, you have to learn a great many courses, some of which are Furthermore, as they have more time to manage for themselves, students drop higher education in universities could earn some money and gain earlier start in career. These will ease their families" burdens and satisfy their desire for basic money needs. As a matter of fact, nowadays, more than a few American teens abandon university" s education and try to bee a worker like decisions benefit themselves and their families. career development with more petitive skills, fit knowledge, precious experiences of social life and more leisure to earn some essential financial supports. As we"ll one daywalk into the realistic society, informal higher education serves better for our present and future   篇3:On Volunteer   The definition of the word volunteer in LougnanLongman Dictionary is someone who helps others sponstaneouslyspontaneously and willingly. That"s true! Life is a style of enjoying yourself, not only by entertaing and enriding yourself, but also by the process of helping others.   Undoubtfully, those volunteers reveal their great love and passion for their country. Love is the eternal theme of the world, Without hovelove, it"s like birds without wings, failing to show its talents of flying, It"s like spring without flowers, burying is charming fragrants in the deep soil. Their volunty work unites China, shouing the world how united Chinese people are shocking the world of its cooperation.   People around the country are making their efforts to helping others, which leaves the world an impression that China is a veal country, and all the people here are like brothers and sisters, who cares a lot for others. You can never imagine how touched I was when I watched the TV program called “Moving China”. 13 peasants from tangshang volunteered to help those victims of Sichuang on hearing the tremendous earthquake happened there, leaving all their farm work done in the field they sacrifiled anything and helped others at any cost, for they knew the glant pains the earthquake brings to people. They can never forget how much pains they havendertaken in the earthquake and how much help they have received from the world. They pared their own feelings to the victims and passed the splrit on. In this sense, people will pass the spirit from generation to queneration, from China to all over the world. Then, how sweet will the World be!   I have a dream that one day, I will be a member of the volunteer team. I have a dream that oneday, I"ll make contributions to China however slightest it may be. I have a dream that one day I"ll be a founder of a world Charity, helping people all over the world. I"m firmly convinced that it will not only be a drean for me, but also a drean for people all over China, all over the world, and for the great Global Village.   篇4   There is a vivid saying that every glorious event is justifiably connected with volunteers who is a group of people, holding the fundemental to help others without pay-back benefits. In 1993, when the new word burt out among social society, most of us gave a slur to it in considering of economy. The special group, however, is just like a river - *** all at first, contained within its banks, flood passionally then merged into the sea, for the sense of moral considerations. And now, I quite support to be a volunteer.   We can never forget these moving scenes: A group of adolecents from Beijing dashed to the City of Wenchuan who gave up their fortable living situations and picked up the heavy burden to save people buried into the ground, while a middle aged white collar who threw away his puter and salary came here to fetch wictims" lives from the death. It is volunteers who rushed to this place which has suffered from the catastrophe that gave a great help to those victims in need. A volunteer can support a piece of sky, and this one reason I am eager to join them.   Secondly, only a volunteer who is in active part in Beijing Olympic Games will he give a great help to those losers. It is volunteers who gave us a warm wele to Beijing that put the glorious sports meeting from in chaos to in order. A person, as we know, who hasn"t join into the group of volunteer is one of the unfortunate victims of this society which is occupied with love. All of us are in high pressure in this adverse circumstance. Our mind catches hold of something and will not let it go, if we choose the way to argue with the mind, the stronger the will, the more fuitile the task, so we, should choose a way to help others, to see the *** ile from others. Then the pressure get out suiftly. I always go into rapture at a mere mention of being a volunteer and regard it as a person who is eager to help others or a group not in the same class with the suburban social-climbers. It seems a cliché but a saying which is an infallibility that a splendid case can not leave a volunteer just as a fish can not live without water.   篇5:Let us shine   Volunteers are just like diamonds in the sun, and the diamonds are forever, especially the youth. Volunteer work is just like a miracle. From the May 12th earthquake to the 2008 Beijing Olympic Games, volunteer work made unbelievable contributions.   60 years ago our country was set up, today we will celebrate its 60th birthday. In this process, volunteer work did a lot of help and now our country is standing in the world just like a giant. In the past years, volunteers have helped a large number of people, the old, the young, the poor and the homeless. All the volunteers know that the road ahead will be long and cragged, but no matter what obstacles stand in their way they will never stop. Because they have a creed and they believe everything is possible. Oh the creed of volunteer work, you make volunteers keep on going without hesitation. Oh the creed of volunteer work, you make volunteers hand in hand and be with together forever. Oh the creed of volunteer work, you make volunteers go to the edge of the world and let them know the true meaning of life. Do you know what the creed is? Yes, it is love. With love, volunteer work makes people open their mind and let them find the sky is theirs. With love, volunteer work makes people look into their hearts and let the sunshine in. With love, volunteer work makes people believe that *** ilers will never lose and frowners will never win.   I know something has changed because of volunteer work. I know it for real because it feels so right and the world looks so much brighter. Love is important to volunteer work and volunteer work is important to the whole world.   The infinite sky is motionless and the blue ocean is boisterous. This moment is perfect. Let us bee volunteers and try our best in volunteer work. It can be the start of something new and it"s our turn to learn some or win some. So, let"s make a wish and get ready to shine like diamonds.
2023-07-14 18:11:531

战争之人突击小队2 3.205.2和3.260 有什么区别

传统钓 一线到底,还是用无色或浅棕色比较好一点。简单说:子线比较柔软,但拉力没有主线大。主线拉力虽大但相对稍硬,主线带颜色最主要的一个目的就是便于台钓观察风线是否压入水中鱼线是指鱼的身上一条侧线,就是在鱼体两侧的由许多小孔排列而成的线条。鱼通过鱼线感受到鱼耳所不能感受的低频振动,当敌害接近时,能及时发觉而逃离。鱼线也指钓鱼时用的线,常作“渔线”。常用的渔线型号有:0.4号(线径0.104毫米)、0.6号(0.128毫米)、0.8号(0.148毫米)、1号(0.165毫米)、1.2号(0.185毫米)、1.5号(0.205毫米)、2号(0.235毫米)、2.5号(0.260毫米)、3号(0.285毫米)、3.5号(0.310毫米)、4号(0.330毫米)、5号(0.370毫米)……一般本白色或烟灰色接近水色,其隐蔽性较好。
2023-07-14 18:12:011

如何在本地环境配置github

这里主要讲的是mac系统,windows也是一样的,只不过mac是在终端下进行,而windows是在cmd下进行的。安装git,这里推荐安装Apple公司的Xcode,Xcode集成了Git,最新版的Xcode已经默认安装好了git。完成安装之后,就可以使用 git 的命令行工具。当然,首先你需要注册一个github账户。配置帐号信息在cmd或者终端下输入以下命令行:git config --global user.name trigkit4git config --global user.email 345823102@qq.com当然,这是我的账户信息,你需要将他们换成你自己的。创建本地ssh这是一种传输代码的方法,速度快又安全。SSH 是目前较可靠,专为远程登录会话和其他网络服务提供安全性的协议。在终端或cmd输入以下命令行:ssh-keygen -t rsa -C "345823102@qq.com" 当然,邮箱依然换成你注册github时所用的邮箱。如下图所示:路径选择 : 使用该命令之后, 会出现提示选择ssh-key生成路径, 这里直接点回车默认即可, 生成的ssh-key在默认路径中;密码确认 : 这里我们不使用密码进行登录, 用密码太麻烦;就一路回车下去将ssh配置到GitHub中在mac os X 下前往文件夹,/Users/自己电脑用户名/.ssh。windows应该是(C:Documents and SettingsAdministrator.ssh (或者 C:Users自己电脑用户名.ssh)中)。然后用记事本打开id_rsa.pub,将里面的全部代码复制到github的SSH中。id_rsa.pub 文件内容 :ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDS0qLtpontavr43AQntX4oBOsg2R3QlWubMYvfgJsIDX6NWd5RaIDLBLEMwIFLDcpvpQKvk5S/bTy4vTuWqeY6fkQ/tZBKksQn1WuYDcSfjLF8BuPMfdkboTh9NaKESKnsiWdranEVbmB5vOAHm8T+HFGdzG7Tz4ygzCnTwvdpBYrd/4jgeazws2d7CuMeuyb+FxdDTQy9YmJJm+82ypfR//bLyzRJo3SYadnPO3VdOAZCO1Isky+p/0nNN/obC4t2y2+oHBAqJV9h37f9S8UShgDmZoVLicRi4poni0i70xj+t/hnOsT8fmEc+vM9USyN+ndawz2oWjikKgln1jOB 345823102@qq.com登陆github网站,点击Settings——SSH keys——点击右侧的Add SSH key ,接下去你懂得。验证是否配置成功 :复制如下代码:ssh -T git@github.com然后出现如下信息:Warning: Permanently added the RSA host key for IP address "192.30.252.131" to the list of known hosts.Hi hawx1993! You"ve successfully authenticated, but GitHub does not provide shell access.验证时可能让你输入YES,当出现以上信息时,说明配置成功,可以连接上GitHub;
2023-07-14 18:12:401

would作情态动词时的用法,必须要详细

1.表示过去曾有过的意志、决心I would do my best.2.表示请求、愿望、看法等,使语气委婉would you like tea?3.过去习惯性动作He would go fishing on suday.
2023-07-14 18:17:145

PHP使用ODBC连接数据库的方法

本文实例讲述了PHP使用ODBC连接数据库的方法。分享给大家供大家参考。具体实现方法如下:<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><htmlxmlns="http://www.w3.org/1999/xhtml"xml:lang="en"lang="en"><head><title>PHPandODBC:XHTMLExample1</title><metahttp-equiv="Content-Type"content="text/html;charset=UTF-8"/></head><body><?php$conn=odbc_connect("DRIVER={MySQLODBC3.51Driver};Server=localhost;Database=phpodbcdb","username","password");if(!($conn)){echo"<p>ConnectiontoDBviaODBCfailed:";echoodbc_errormsg($conn);echo"</p> ";}$sql="SELECT1astest";$rs=odbc_exec($conn,$sql);echo"<table><tr>";echo"<th>Test</th></tr>";while(odbc_fetch_row($rs)){$result=odbc_result($rs,"test");echo"<tr><td>$result</td></tr>";}odbc_close($conn);echo"</table>";?></body></html>希望本文所述对大家的php程序设计有所帮助。
2023-07-14 18:17:291

java的http编程怎样取消user-agent报头

我在android上做一个用基站方法获取用户地理位置信息的应用,程序将用户此时的信息封装为josn的格式以HTTP的形式发送出去,等待google 服务器返回用户的地理位置信息。在等待过程中,如果此时用户推出程序,则取消http请求。我用的是http.abort()的方法,即: 如果用户推出程序,执行CancelFetchAddress()方法, public void CancelFetchAddress() { try{ if (mGettingAddress && mHttpPost != null) { Log.d(Constants.LOG_TAG, "Try to abort Json request"); mHttpPost.abort(); } }catch(Exception e) { Log.e(Constants.LOG_TAG, "Abort Json request failed: " + e.toString()); } } 但是在实际实现中,当用户推出程序时,执行了CancelFetchAddress()方法,但是程序还是一直等待在 “BaseStation: posting the HTTP request....");” 中,直到40秒后,返回错误信息,java.net.SocketException:Socket is closed。也就是说,执行mHttpPost.abort();
2023-07-14 18:17:361

六人搞笑英语短剧

asdfasdfa
2023-07-14 18:17:443

迈克尔杰克逊的身高是多少?

MS听说178cm左右吧.。。8清楚额。。。
2023-07-14 18:10:517

从大公司出来的人越简单越容易成功

从大公司出来的人越简单越容易成功   在雷军看来,做产品就是要回归简单,但简单不仅仅是把杂乱无章的事情抹去,而是挖掘复杂性的深度,复杂中有规律可行,控制产品,让它们听从你。以下是我J.L分享的从大公司出来的人越简单越容易成功,更多热门创业项目请您继续访问(www.oh100.com/chuangye)。   1 保持简单   我有一个朋友,在一家软件的大企业做了十年的软件研发,想出来创业,问我要注意什么。我开玩笑说,要想成功,第一条就是「挥刀自宫」。   大的软件公司有很多资源,研发能力也不错,各种推广资源也非常优越,但很少开发出来优秀的互联网产品。初步看上去,原因很多,比如很难调动个人的积极性、内部管理协调非常困难等。   我认为还有一个重要的原因,就是方法不得当。大公司资源多,一个互联网创新项目,投入大量资源后,公司的期望值高了,考虑的问题自然多了,反而不容易做好。   我在小米创业的初期就强调一定要保密,一定要足够低调,这样有两个好处,首先是降低了大家的期望值,其次也会让我们更加专注于做产品。试想这玩意大家一看雷军做的可能期望值就高了,如果我们就是张三,王五做的,甚至没有名字做的,用户的心理预期可能就没有那么高了。   当我们第一个产品出来的时候,我们就是在几个论坛里发了几个帖,然后靠「米粉」口口相传,甚至传到国外去了,因为他们没有太高的期望,如果他们有很高期望值的时候,你又达不到预期,这样就很难让用户主动给你的产品做推广了。   所以从大公司离职出来创业,首先要「挥刀自宫」,干掉大公司这套做法,控制成本尽量少花钱,集中精力和资源解决核心的一两个问题就足够了。   不要想太多,不做太长时间的计划,尤其是计划不能太复杂!创业成功需要的是发现机会和快速突破的能力,再加一点运气。大公司的工作经验太多,有时候反而会限制自己的做法。   互联网创业,越简单越单纯,越容易成功!   2 「七字诀」   2000年我牵头创办了卓越网,2004年卓越网卖给亚马逊。卖掉卓越网后,我一直在思考到底什么是互联网?   我当时面临的一个很大的压力是什么呢?金山只有20%到30%的成长,而卓越网能获得100%的增长。我就在想,这事情好像不对,我花了80%时间的东西只有20%到30%成长,问题出在了什么地方?我们如何才能更快地成长呢?而且互联网到底是一个什么样的东西呢?   足足想了半年多,我才觉得自己对互联网有了一点点感觉。这个门道是什么呢?其实说起来很简单:互联网是一种观念!互联网其实不是技术,互联网其实是一种观念,互联网是一种方法论,你用这种方法论就能把握住互联网的精髓了。为了让你更容易理解互联网,我就把它总结成七个字,「专注」、「极致」、「快」和「口碑」,号称「七字诀」。那这个「七字诀」厉害在什么地方呢?只要按这个方法去做,就会事半功倍。   1)、专注:解决用户一个迫切的需求,解决的问题一句话就可以说清楚。   一个明确而且用户迫切需要的产品,很容易找到明确的用户群。这样,产品研发出来后,不容易走偏;   选择的用户需求要有一定的普遍性,这点决定这个产品的未来市场前景;   解决的问题少,开发速度快,也容易控制初期的研发成本和风险;   解决明确问题的产品,容易跟用户说清楚,推广也会相对简单;   2)、极致:要在这个功能点上做到所有同类产品的极致,做到最好才能赢。   极致是互联网产品的核心,只要极致才能超出用户的口碑,形成口口相传的效应,给后期的推广带来了很大的便利;   专注才能做到极致,做到极致才能击败竞争对手;   3)、快:开发周期一定要控制在三到六个月的时间,一定要快。   互联网时代,用户需求变化比较快,而且竞争也比较激烈。快速的开发,容易适应整个市场的节奏,并且节约成本。   用户试用过程中,如果发现问题,反应速度也要快,尽快改善尽快更新。初期,我认为要保持在一两周的更新速度。   4)、口碑:初期市场营销坚持少花钱甚至不花钱,才能看出产品对用户真正的吸引力。   产品完成后,不要着急,先坚持在一个小规模的用户群中试用,听听用户反馈。   如果大规模的推广会带来这两个问题。首先投入大量市场费用后,用户期望值很高,如果产品不完善,很容易引起负面的口碑,为以后的推广留下了隐患。其次大规模市场推广得到的测试效果不准确。如果产品不完善,甚至需求选择有问题,会被数字掩盖。当推广费用停止后,用户量不增长甚至下滑,再改就来不及了。过去几年成功的.互联网创业公司,其实在市场营销上花的钱都非常少,但这些公司在市场营销上花的精力并不少。   刚开始最重要的推广技巧是搜索引擎优化和病毒式营销。   一次完美的互联网创业,最好是技术、产品高手搭配的两三人创业,三到六个月内完成产品,再用半年到一年的时间测试完善产品,达成初步成功的门槛,再寻求融资,摸索成功的商业模式,然后投入大量的市场资源推广,形成规模化业务。   初步成功的标准,不同的业务要求不同。   我有一个简单的标准供你参考,就是产品推出半年到一年时间,网站页面过一百万PV,或者客户端产品日净增安装量1万次,而且用户数还在持续增长。达成这个目标之后,需要琢磨的事情,就是在保持增长速度的同时,如何探索好的商业模式。   3 乔布斯给我的启示   我再跟你分享一个乔布斯的故事。   当时Segway(投资人说注:两轮平衡车)代步车原型出来的时候,乔布斯试用后彻夜未眠,第二天参加了该产品的讨论会,乔布斯问了四个非常好的问题,我觉得对很多创业者都有较大的参考价值:   第一问:产品定位   当时Segway公司想出两款型号,分别针对个人和商用市场。   乔布斯问他们为什么要出两款?为什么不先出一个普通版本,卖个几千块美元,真的热销了,再出一个价格翻倍的增强版,针对工业和军事领域呢?   他开始讲自己做 iMac的经历,为什么他在发布了第一款 iMac之后等了七个月才推出其他花色?他希望他的设计师、销售人员、公关,都100%的聚焦。就是说,他一上来,会把自己的退路封死。   毫无疑问,同时做两款产品,无论哪款都会有一些侥幸心理,即使这款不好,那款成功也够了。人们就很容易说服自己放弃对单一产品的热忱。但乔布斯的思考方法,会让全公司上下永远孤注一掷,这也就是外界经常说的,他的员工会被他压迫得爆发出潜能来。   第二问:产品设计   乔布斯问Segway公司,你们觉得自己的产品怎么样,然后评论原型产品是狗屎。乔布斯一瞬间说出了三个评判标准:它的外形不创新、它不优雅、也感觉不到人性化。“你拥有让人难以置信的创新的机器,但外形看上去却非常地传统。”最后,他给了建议:去找一家最好的设计公司,一定要做出让你看到之后会被雷得拉一裤子的牛叉产品!   这段的信息量同样很足,因为它很简明的总结出乔布斯的三个设计标准:设计是否出奇,或者是否优雅,或者是否足够人性化。   第三问:产品生产   当时Segway公司担心技术被仿制,想设立工厂自己生产。   乔布斯问,为什么你们要盖个工厂?他坚决反对。乔布斯的想法是用时间和资金去找到其他壁垒。就像 iPod和 iTunes的相伴,iPhone时代靠手机补贴获得的低价等构造了应用开发平台和appstore等一道道护城河,把 iPhone小心呵护起来。   第四问:产品营销   如何卖这个产品?   乔布斯先给了一个保守方案:把这机器,在斯坦佛这样的一流大学、迪斯尼这样的主题公园里,做小规模推广。但他立刻补充说,这风险也不小,如果有一个倒霉孩子在斯坦佛不小心摔一跤,然后在网上乱骂一顿Scooter这款产品,公司就完蛋了。如果是一个大规模的发售呢,一点点麻烦不会从根本上伤害公司。老乔说「我是个大爆炸主义者」,说完这句话,他乐了,“高举高打的风险,就是你把自己暴露给你的敌人,你需要很多钱跟仿制者作战。”   经过老乔指点后的Segway这款产品,果然很酷!在老乔看来只有专注,才能把每件事情做到极致。这样,每个产品出来都是石破天惊,横扫市场。   4 Google十诫   在我看来互联网产品成功的关键因素是用户口碑。   资源永远有限,对于创业公司尤其如此。我在金山的时候为了推动金山的互联网转型,为了让金山同事更好地理解互联网的精髓,曾推动了一场向Google学习的运动,其中一条就是要求人人能背Google十诫。   时至今日,我还能很轻松背出来。这十条中给我留下最深刻的印象是「把一件事情做到极致」和「仅有优秀是远远不够的」。仔细揣摩一下,就可以理解为什么Google每个产品都让用户癫狂,因为极致。Google做的每个产品,的确做到了能做的极致!   Google和Apple之所以伟大,就是因为拥有专注和极致的这样的基因。创业者从创业开始,如果坚持专注和极致,才有机会做成一家像Google和Apple一样伟大的公司! ;
2023-07-14 18:10:551

翁作为姓氏怎么读?

就是weng
2023-07-14 18:10:557

在switch520上下载的游戏怎么打开

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