C线程同步/异步

 #include<windows.h>
 #include<stdio.h>
 #include<string.h>
 //#include <afxmt.h>
 #define T_MAX 100
 int  ticket;
 CRITICAL_SECTION CriticalSection;
 /* //售票线程
 DWORD WINAPI SaleThread(LPVOID lp)
 {
 int n = (int) lp;
 while (ticket > 0)
 {
 printf("SaleThread%d sell %dth ticket\n", n, T_MAX-ticket+1);
 ticket--;
 Sleep(500);
 }
 return 0;
 }

 void MyThread()
 {
 HANDLE handle1,handle2,handle3,handle4,handle5;
 //5个售票线程
 handle1 = CreateThread(NULL,NULL,SaleThread,(void*)1,NULL,NULL);
 handle2 = CreateThread(NULL,NULL,SaleThread,(void*)2,NULL,NULL);
 handle3 = CreateThread(NULL,NULL,SaleThread,(void*)3,NULL,NULL);
 handle4 = CreateThread(NULL,NULL,SaleThread,(void*)4,NULL,NULL);
 handle5 = CreateThread(NULL,NULL,SaleThread,(void*)5,NULL,NULL);
 }
 */

 //售票线程
 DWORD WINAPI SaleThread(LPVOID lp)
 {
 int n = (int) lp;
 while (ticket > )
 { //临界区同步
 EnterCriticalSection(&CriticalSection);
 printf("SaleThread%d sell %dth ticket\n", n, T_MAX-ticket+);
 ticket--;
 LeaveCriticalSection(&CriticalSection);
 Sleep();
 }
 return ;
 }
 void MyThread()
 {
 HANDLE handle1,handle2,handle3,handle4,handle5;
 //5个售票线程
 handle1 = CreateThread(NULL,NULL,SaleThread,(void*),NULL,NULL);
 handle2 = CreateThread(NULL,NULL,SaleThread,(void*),NULL,NULL);
 handle3 = CreateThread(NULL,NULL,SaleThread,(void*),NULL,NULL);
 handle4 = CreateThread(NULL,NULL,SaleThread,(void*),NULL,NULL);
 handle5 = CreateThread(NULL,NULL,SaleThread,(void*),NULL,NULL);
 }

 int main(int argc, char* argv[])
 {
   ticket=;
 //创建临界区对象
 InitializeCriticalSection(&CriticalSection);
 if(ticket>)
 MyThread();
 Sleep();
 //删除临界区对象
 DeleteCriticalSection(&CriticalSection);
 return ;
 }