随机点名程序实现

#include<ctime>
#include<cstdlib>
#include<string>
#include<iostream>
using namespace std;

int main(){
    srand(time(NULL));
    //种下随机种子，否则rand()函数返回的是伪随机数
    string name[] = {"zhangsan","lisi","zhaoliu","wangwu"};
    int len = sizeof(str)/sizeof(str[0]);
    cou t<< str[rand()%len] << endl;//输出随机到的名字
    return 0;
}