生成随机数

#include <bits/stdc++.h>using namespace std;int main(){    char t=1;///判断是否结束循环    while(1)///死循环    {        int left;                               ///左边界        int right;                             ///右边界        cout<<"请输入您需要的左右边界：\n";        cin>>left>>right;        if(left>=right)        {            cout<<"您的是输入数据不合法，请重新输入.\n";            continue;        }        srand( (unsigned)time(NULL) );       /// 截取毫秒        int num=rand()%right + left;        ///对右边界取余 极爱左边界        while(!(num>= left && num<=right))  ///循环判断随机数在范围内        {            srand( (unsigned)time(NULL) );        }        cout<<"幸运听众的编号 "<<num<<endl;        cout<<"是否继续运行？1:0\n";       ///吃回车        cin>>t;        if(t=='0')        {            cout<<"欢迎下次使用!\n";            break;        }        else if(t=='1');///继续        else        {            cout<<"孙子你找死啊！！！！！"<<endl;            break;        }    }    return 0;}