基于windows win32 Console App的多线程小例子

/*
这是一个多线程编程的简单实例。
首先，新建一个win32 Console App，
其次，确认如下设置：
      project->property->Configuration Properties
      ->C/C++->Code Generation->Runtime Library->Multi-thread DLL(/MD)
*/
    #include<stdafx.h>
    #include <stdio.h>  
    #include <stdlib.h>  
    #include <windows.h>  
      
    typedef struct thread_param{  
        int threadno;  
        char str[20];  
    }T_PARAM;  
      
    void * myFunc(T_PARAM *ww);  
      
    int main(int argc,char *argv[])  
    {  
        int i = 0;  
        HANDLE  h_thread[20];  
        T_PARAM *myparas;  
        T_PARAM *mypara;  
        char str[]="test";  
      
        myparas = (T_PARAM *)malloc(sizeof(T_PARAM)*20);  
        if(myparas == NULL)  
        {  
            printf("Malloc Error!\n");  
            return -1;  
        }  
        memset(myparas,0,sizeof(T_PARAM)*20);  
      
        for(i = 0;i<20;i++)  
        {  
            mypara = myparas + i;  
            mypara->threadno = i;  
            strcpy(mypara->str,str);  
      
            h_thread[i] = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)myFunc,(LPVOID)mypara,0,NULL);  
            if(h_thread[i] == NULL)  
            {  
                printf("Thread No[%d] Start Failed!\n",i);  
                return -2;  
            }  
        }  
        
        for(i = 0;i<20;i++)  
        {  
            WaitForSingleObject(h_thread[i],INFINITE);  
            CloseHandle(h_thread[i]);  
        }  
        
        free(myparas);  
        printf("Excl Suc!!!\n");  
        return 0;  
    }  
      
    void * myFunc(T_PARAM *ww)  
    {  
		printf("%d\n",ww->threadno);
        return 0;  
    }