```c++
#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cout<<" 1.百度"<<endl;
cout<<" 2.360"<<endl;
cout<<" 3.必应"<<endl;
cout<<" 4.爱奇艺"<<endl;
cout<<" 5.哔哩哔哩"<<endl;
cout<<" 6.CSDN"<<endl;
cout<<" 您想打开:";
cin>>n;
if(n==1)
system("start www.baidu.com");
if(n==2)
system("start www.hao360.com");
if(n==3)
system("start https://cn.bing.com/");
if(n==4)
system("start https://www.iqiyi.com/");
if(n==5)
system("start https://www.bilibili.com/");
if(n==6)
system("start https://www.csdn.net/");
}
```