C++临界锁CCriticalSection在线程中的使用

#define _AFXDLL
#include <afxmt.h>
#include <iostream>
using namespace std;

CCriticalSection critical;
int tick=0;


DWORD WINAPI Func1(LPVOID lpParam);
DWORD __stdcall Func1(LPVOID lpParam)
{
    critical.Lock();
    tick += 10;
    cout << "Func1 TICK NOW IS : " << tick << endl;
    critical.Unlock();
    return 0;
}


DWORD WINAPI Func2(LPVOID lpParam);
DWORD __stdcall Func2(LPVOID lpParam)
{
    critical.Lock();
    tick += 10;
    cout << "Func2 TICK NOW IS : " << tick << endl;
    critical.Unlock();
    return 0;
}

int main()
{
    HANDLE t1 = CreateThread(NULL, 0, Func1, NULL, 0, NULL);
    HANDLE t2 = CreateThread(NULL, 0, Func2, NULL, 0, NULL);

    while (true)
    {

    }

    CloseHandle(t1);
    CloseHandle(t2);
    return 0;
}