c语言中程序的循环控制(do语句,用户决定输入数字个数,求和及平均值)

 

c语言中程序的循环控制(do语句,用户决定输入数字个数,求和及平均值)

1、

#include <stdio.h>

int main(void)
{
    int j;
    int sum = 0, cnt = 0;
    do
    {
        int i;
        puts("please input an integer!");
        printf("i = "); scanf("%d", &i);
        
        sum = sum + i;
        cnt = cnt + 1;
        puts("choose continue or quit; j = 0: continue; j != 0: quit!");
        printf("j = "); scanf("%d", &j); 
    }
    while (j == 0);   ## 此处决定是否继续执行循环体
    printf("sum = %d; mean = %.2f", sum, (double)sum / cnt);
    return 0;
} 

 

posted @ 2021-03-15 11:18  小鲨鱼2018  阅读(494)  评论(0编辑  收藏  举报