C语言中如何生成1～100的随机数（附代码）(2)-木庄网络博客

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1	`ret = rand()%100;`

rand()%100是为了产生100以内的随机数。

有趣的小程序

这是一个电脑自己猜数字的小程序。

#include<stdio.h>#include<time.h>#include<process.h>#include<stdlib.h>#include<Windows.h>int main()
{    int ret = 0;    int guess = 0;    int left = 0;    int right = 100;
    srand((unsigned int)time(NULL));
    ret = rand() % 100;    printf("提供的答案数是->%d\n",ret);
    guess = 50;    while (1)
    {        if (guess > ret)
        {            printf("猜大了->%d\n", guess);
            right = guess;
            guess = (right + left) / 2;
            Sleep(1000);
        }        else if (guess < ret)
        {            printf("猜小了->%d\n", guess);
            left = guess;
            guess = (right + left) / 2;
            Sleep(1000);
        }        if (guess == ret)
        {            printf("猜到了是%d", guess);            break;
        }
    }
    system("pause ");    return 0;
}