#include <stdio.h>
int main()
{
int i,sum=0;
i=0;
while(i<=100) //循环条件应该是什么呢？
{
sum=sum+i;
i++;
printf("%d\n",i);//这里是不是应该改变循环变量的值
}
printf("100以内所有整数之和为：%d\n", sum);
return 0;
}
谁告我错哪了，为虾米验证过不去
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++i试试
楼上说的正是问题所在。
这个教程的结果验证机制大概是只检测最后输出的那一句话。
因为你前面输出了循环变量的值，它就认为你的输出结果不符合要求，所以报错！
printf("%d\n",i);//这里是不是应该改变循环变量的值 ，把这句话去掉，人家没让你打印每次变量的值。