#include <string.h> #include <stdlib.h> #include <stdio.h>   #include <process.h>   #include <windows.h>   #define MAXHANDLE  3 char  g_write[1028]; //线程1,线程2,线程3按到顺序向该数组赋值 HANDLE g_hThreadEvent[3]; HANDLE handle[MAXHANDLE]; int g_Number; //线程1函数   unsigned int __stdcall ThreadFun1(PVOID pM)  {      int uiNumber = *(int *)pM;     int iLoop    = 0;     g_Number = uiNumber;     for (iLoop; iLoop < uiNumber; iLoop++)     {         //printf("this is thread 1: %s\n", g_write);         WaitForSingleObject(g_hThreadEvent[0], INFINITE);         strcat(g_write, "A");         SetEvent(g_hThreadEvent[1]);     }     _endthreadex(0);     return 0; }  //线程2函数   unsigned int __stdcall ThreadFun2(PVOID pM)  {      int iLoop = 0;     for (iLoop; iLoop < g_Number; iLoop++)     {         //printf("this is thread 2: %s\n", g_write);         WaitForSingleObject(g_hThreadEvent[1], INFINITE);         strcat(g_write, "B");         SetEvent(g_hThreadEvent[2]);     }     _endthreadex(0);     return 0;  }  //线程3函数   unsigned int __stdcall ThreadFun3(PVOID pM)  {      int iLoop = 0;     for (iLoop; iLoop < g_Number; iLoop++)     {         //printf("this is thread 2: %s\n", g_write);         WaitForSingleObject(g_hThreadEvent[2], INFINITE);         strcat(g_write, "C");         SetEvent(g_hThreadEvent[0]);     }     _endthreadex(0);     return 0;  }  void Init(void) {     g_hThreadEvent[0] = CreateEvent(NULL, FALSE, TRUE, NULL);     g_hThreadEvent[1] = CreateEvent(NULL, FALSE, FALSE, NULL);     g_hThreadEvent[2] = CreateEvent(NULL, FALSE, FALSE, NULL);     memset(g_write, NULL, sizeof(g_write)); } void Release(void) {     int iLoop = 0;     for (int iLoop = 0; iLoop < MAXHANDLE; iLoop++)     {         CloseHandle(handle[iLoop]);     } } int main( int Argc, char* Argv[]) {     int uiNumber = 10;   //需要重复打印的次数     int *num     = NULL;     Init();     num  = (int*)malloc(sizeof(int));     *num = uiNumber;     handle[0] = (HANDLE)_beginthreadex(NULL, 0, ThreadFun1, num, 0, NULL);     handle[1] = (HANDLE)_beginthreadex(NULL, 0, ThreadFun2, NULL, 0, NULL);     handle[2] = (HANDLE)_beginthreadex(NULL, 0, ThreadFun3, NULL, 0, NULL);     WaitForMultipleObjects(MAXHANDLE, handle, TRUE, INFINITE);     Release();     printf("g_write = %s\n", g_write);     system("pause");     return 0; }