288-两个线程交替打印奇数偶数

以你之姓@ 2023-01-15 08:07 203阅读 0赞

## 两个线程交替打印奇数偶数 ##

#include <thread>
    #include <condition_variable>
    #include <mutex>
    #include <iostream>
    using namespace std;
    
    mutex mx;//定义互斥锁
    condition_variable cv;//定义条件变量
    int number = 0;//全局量，初始化为0
    void thread_func1()//线程1
    {
        
        unique_lock<mutex> lc(mx);
        while (number <= 100)
        {
        
            while (number % 2 != 0)
            {
        
                cv.wait(lc);//挂起，放到阻塞队列上
            }
            if (number <= 100)
                cout << number << " ";
            number++;
            cv.notify_all(); //通知其他线程可以去打印了
        }
    }
    
    void thread_func2()
    {
        
        unique_lock<mutex> lc(mx);
        while (number <= 100)
        {
        
            while (number % 2 != 1)
            {
        
                cv.wait(lc);//挂起，放到阻塞队列上
            }
            if (number <= 100)
                cout << number << " ";
            number++;
            cv.notify_all(); //通知其他线程可以去打印了
        }
    }
    
    
    int main()
    {
        
        thread s1(thread_func1);
        thread s2(thread_func2);
        s1.join();
        s2.join();
        system("pause");
        return 0;
    }

## 运行程序 ##

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