s=0:t=o:u=0for i=1 to 3for j=1 to i for k=j to 3s=s+1next kt

s=0:t=o:u=0
for i=1 to 3
for j=1 to i
for k=j to 3
s=s+1
next k
t=t+1
next j
u=u+1
next i
print s;t;u
s t u分别为14,6,3 如何来的?,麻烦解释一下三层for循环如何执行?顺序是执行最内层的再中间后最外?但我还是不能得出结果!