c++计时器2.0

#include <iostream>
#include<windows.h>
using namespace std;
#define l1 1200
#define n1 532
#define KEY_DOWN(VK_NONAME) ((GetAsyncKeyState(VK_NONAME) & 0x8000) ? 1:0)
int q,w,e;
int main();
void mb(){
	int xs=0,fz=0,ms=0,hs=0;
	while(!KEY_DOWN(MOUSE_EVENT)){
		if(hs==10){
			ms++;
			hs=0;
		}else if(ms==60){
			fz++;
			ms=0;
		}else if(fz==60){
			xs++;
			fz=0;
		}
		cout<<xs<<':'<<fz<<':'<<ms<<':'<<hs;
		_sleep(65);
		hs++;
		system("cls");
	}
}
void jsq(){
	int xs,fz,ms;
	cout<<"输入时间:";
	cin>>xs>>fz>>ms;
	while((xs!=0||fz!=0||ms!=0)&&!KEY_DOWN(MOUSE_EVENT)){
		if(ms==-1){
			fz--;
			ms=59;
		}else if(fz==-1){
			xs--;
			fz=59;
		}
		cout<<xs<<':'<<fz<<':'<<ms;
		if(KEY_DOWN(MOUSE_EVENT))break;
		_sleep(970);
		system("cls");
		ms--;
	} 
	if(xs==0&&fz==0&&ms==0) cout<<"\a";
}
int main(){
	cout<<"欢迎来到我的c++计时器";
	_sleep(1000);
	system("cls");
	int js;
	cout<<"输入形式，1秒表，2计时器,3退出";
	cin>>js; 
	if(js==1){
		mb();
	}else if(js==2){
		jsq();
	}else if(js==3){
		exit(0);
	}
	system("cls");
	main(); 
    return 0;
}

?

1. 更新了声音