VC 多线程使用临界区

// CsTest.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include <Windows.h>#include <stdio.h>int g_Num_One = 0;CRITICAL_SECTION g_cs;DWORD WINAPI ThreadProc(LPVOID lpParam){    int nTmp = 0;int i = 0;    for (i = 0; i < 10; i ++ )    {//注释掉临界区，全局变量数据会乱,在临界区只允许一个线程进来执行        EnterCriticalSection(&g_cs);        nTmp = g_Num_One;        nTmp ++;        Sleep(1);        g_Num_One = nTmp;printf("%d %d\n",g_Num_One,nTmp);        LeaveCriticalSection(&g_cs);//每条线程循环10次    }//printf("线程执行");    return 0;}int main(int argc, char* argv[]){    InitializeCriticalSection(&g_cs);    HANDLE hThread[10] = { 0 };int i = 0;    for (i = 0; i < 10; i ++)    {        hThread[i] = CreateThread(NULL, 0, ThreadProc, NULL, 0, NULL);        if ( hThread[i] == NULL )        {            printf("%d CreateThread Error \r\n", i);        }    }    WaitForMultipleObjects(10, hThread, TRUE, INFINITE);    printf("%d \r\n", g_Num_One);        for ( i = 0; i < 10; i ++ )    {        CloseHandle(hThread[i]);    }    DeleteCriticalSection(&g_cs);system("pause");return 0;}