程序代码：

//最简单的创建多线程实例   
#include <stdio.h>   
#include <windows.h>   
//子线程函数 A  
DWORD WINAPI ThreadFunA(LPVOID pM)  
{  
    printf("子线程A的线程ID号为：%d\n子线程A输出Hello World\n", GetCurrentThreadId());  
    return 0;  
} 
//子线程函数 B
DWORD WINAPI ThreadFunB(LPVOID pM)  
{  
    printf("子线程B的线程ID号为：%d\n子线程B输出Hello World\n", GetCurrentThreadId());  
    return 0;  
} 
//主函数，所谓主函数其实就是主线程执行的函数。   
int main()  
{  
    printf("最简单的创建多线程实例\n");  
  
    HANDLE handleA = CreateThread(NULL, 0, ThreadFunA, NULL, 0, NULL);  
    WaitForSingleObject(handleA, INFINITE);  
    HANDLE handleB = CreateThread(NULL, 0, ThreadFunB, NULL, 0, NULL);  
    WaitForSingleObject(handleB, INFINITE);  
    system("pause");  
}  

程序代码：

#include <stdio.h>
#include <windows.h>
//子线程函数 A
DWORD WINAPI ThreadFun(LPVOID pM)
{
    printf("子线程 %d 的线程ID号为：%d，输出 Hello World\n", (int)pM,GetCurrentThreadId());
    return 0;
}
//主函数，所谓主函数其实就是主线程执行的函数。
int main()
{
    printf("最简单的创建多线程实例\n");
    printf("主线程的线程ID号为：%d，输出 Hello World\n", GetCurrentThreadId());
    CreateThread(NULL, 0, ThreadFun, (LPVOID)1, 0, NULL);
    CreateThread(NULL, 0, ThreadFun, (LPVOID)2, 0, NULL);
    system("pause");
}

程序代码：

#include <stdio.h>
#include <windows.h>
HANDLE hEvent;
//子线程函数
DWORD WINAPI ThreadFun(LPVOID pM)
{
    WaitForSingleObject(hEvent, INFINITE);
    printf("子线程 %d 的线程ID号为：%d，输出 Hello World\n", (int)pM,GetCurrentThreadId());
    SetEvent(hEvent);
    //Sleep(50);
    return 0;
}
//主函数，所谓主函数其实就是主线程执行的函数。
int main()
{
    hEvent = CreateEvent(NULL, FALSE, TRUE, NULL);
    printf("最简单的创建多线程实例\n");
    printf("主线程的线程ID号为：%d，输出 Hello World\n", GetCurrentThreadId());
    CreateThread(NULL, 0, ThreadFun, (LPVOID)1, 0, NULL);
    CreateThread(NULL, 0, ThreadFun, (LPVOID)2, 0, NULL);
    CloseHandle(hEvent);
    system("pause");
}