#include <iostream>
#include<ctime>
#include<cstdlib>
#include<conio.h>
#include<windows.h>
using namespace std;
class Timer
{
private:
    int n;
public:
    void gotoxy(int x,int y)
    {
        HANDLE h;
        COORD c;
        c.X=x;
        c.Y=y;
        h=GetStdHandle(STD_OUTPUT_HANDLE);
        SetConsoleCursorPosition(h,c);
    }
    Timer()
    {
        n=100;
    }
    void timer()
    {
       // time_t t;//无符号整数类型
        while(true)
        {
            if(kbhit())
                break;
            else
            {
                gotoxy(30,10);
                cout<<n;
                n++;
            }
            Sleep(1000);
        }
    }
};
int main()
{
    Timer t;
    t.timer();
    return 0;
}