#include
int main(void)
{
int n = 5;
while (n< 7);
{
printf("n=%d\n", n);
n++;
printf("now n=%d\n", n);
}
printf("the loop has finish");
return 0;
}
运行结果
你没包含头文件 兄弟 太粗心了
#include<stdio.h>
第5行: while (n< 7); 最后多了 ";" 分号, while (n< 7)
#include<stdio.h>
int main(void)
{
int n = 5;
while (n < 7)//; 多了分号
{
printf("n=%d\n", n);
n++;
printf("now n=%d\n", n);
}
printf("the loop has finish");
return 0;
}