课时3 线程启动结束，创建线程多法，joindetach

Posted 2022-09-17 anthony-ling

用类作为可调用对象创建线程

class A

public:
    A()  cout << "构造函数" << endl; 
    A(const A& a)  cout << "拷贝构造函数" << endl; 

    void operator()()  cout << "此时在子线程中" << endl; 

    ~A()  cout << "析构函数" << endl; 
private:

;

int main(int argc, char** argv)

    A a;
    thread myjob(a);

    myjob.join();

    cout << "此时在主线程中" << endl;
    return 0;

用lambda作为可调用对象创建线程

int main(int argc, char** argv)

    auto f = [] cout << "lambda" << endl; ;
    thread myjob(f);
    //thread myjob([] cout << "lambda" << endl; );这样的使用方法也可以通过编译

    myjob.join();

    cout << "此时在主线程中" << endl;
    return 0;