响铃——卡死

//卡死
#include <iostream>
#include <string>
#include <ctime>
using namespace std;
int main()
{
    char alarm = '\a';
    for(;;)
    {
        cout << alarm << "Don't do that again!"<<endl;
    }
    return 0;
}

来源：oschina

链接：https://my.oschina.net/u/853930/blog/94109