一个简单的线程问题！

#include <Windows.h>
#include <stdio.h>
#include <iostream>
using namespace std;
int count=100;
HANDLE hMutex=CreateMutexW(NULL,false,NULL);
DWORD WINAPI Thread1(__in  LPVOID lpParameter)
{
    while (true)
    {
        if (count>0)
        {
            WaitForSingleObject(hMutex,INFINITE);
            cout<<"Thread1 is running"<<endl;
            cout<<count<<endl;
            count--;
            ReleaseMutex(hMutex);
            Sleep(100);
        }
        //else break;
    }


    return 0;
}
DWORD WINAPI Thread2(__in  LPVOID lpParameter)
{
    while (true)
    {
        if (count>0)
        {
            WaitForSingleObject(hMutex,INFINITE);
            cout<<"Thread2 is running"<<endl;
            cout<<count<<endl;
            count--;
            ReleaseMutex(hMutex);
            Sleep(100);    
        }
        //else break;
        
    }


    return 0;
}

void main(){
    HANDLE hThread1=CreateThread(NULL,0,Thread1,NULL,0,NULL);
    HANDLE hThread2=CreateThread(NULL,0,Thread2,NULL,0,NULL);
    cout<<"Main Thread is running"<<endl;
    Sleep(18000);

}