我按照老师的代码一模一样写的，跑了后就不是正确的结果的

#include <stdio.h>

int main (void)
{
    int i, n;

    printf("Enter the number of iterations: ");
    scanf("%d", &n);

    for (i=1; i<=n; i++)
        printf("This is iteration %d\n", i);

    return 0;
}

运行后显示
Process returned 0 (0x0)  execution time : 1.324 s
Press any key to continue.

我按按键后黑框就消失了