代码程序进程1：
#include<iostream> #include <Windows.h> #include <process.h>//使用进程 using namespace std; HANDLE hMutex;//定义一个句柄给互斥对象使用 DWORD WINAPI Mythread(LPVOID lp1) { char ct1; WaitForSingleObject(hMutex,INFINITE); cout<<"Get Mutex"<<endl; cout<<"Please input the control charater:"; while(1) { cin>>ct1; if(ct1=='q'||ct1=='Q') { cout<<"Finished"<<endl; break; } else cout<<"Please input again:"<<endl; } ReleaseMutex(hMutex); cout<<"Release the Mutex"<<endl; cout<<"Come to your turn:"<<endl; return 0; } int main(int argc,char* argv[]) { HANDLE hHandle; DWORD dw1; hMutex=CreateMutex(NULL, FALSE, "MyMutexObject");//有名的互斥对象，可用于进程间的同步 //检查互斥变量是否创建成功，严格；来说，每次都要在程序中检查这种 if(hMutex==NULL) { cout<<"CreateMutex error :"<<GetLastError(); CloseHandle(hMutex);//关闭互斥变量的句柄 } else { if(GetLastError()==ERROR_ALREADY_EXISTS) { cout<<"Mutex has been created!"<<endl; } else { cout<<"createMutex successfully"<<endl; } hHandle=CreateThread(NULL,0,Mythread,NULL,0,&dw1); cout<<"create worker handle"<<endl; } Sleep(70000); CloseHandle(hHandle); CloseHandle(hMutex); return 0; }进程2：
include <iostream> #include <Windows.h> #include <process.h> using namespace std; HANDLE hMutex; DWORD WINAPI MyThread(LPVOID lp) { WaitForSingleObject(hMutex,INFINITE); cout<<"Get the Mutex"<<endl; cout<<"Hello!everyone come to my turn"<<endl; ReleaseMutex(hMutex); cout<<"Release the mutex"<<endl; return 0; } int main(int argc,char *argv[]) { DWORD dw; hMutex=OpenMutex(MUTEX_ALL_ACCESS,FALSE,"MyMutexObject"); if(hMutex==NULL) { cout<<"OpenMutex error:"<<endl; CloseHandle(hMutex); } else { if (GetLastError()==ERROR_ALREADY_EXISTS) { cout<<"Mutex has been opened"<<endl; } else cout<<"Open Mutex successfully"<<endl; HANDLE hHandle=CreateThread(NULL,0,MyThread,NULL,0,&dw); CloseHandle(hHandle);//得把句柄关闭放在这儿，不然会提示句柄没有初始化 cout<<"create worker Mutex "<<endl; } Sleep(70000);//把时间用的很长，便于操作得到反应 CloseHandle(hMutex); //CloseHandle(); return 0; }