#include<iostream>#include<thread>
using namespace std;bool is_exit = false;//用于判断主线程是否退出voidThreadMain(){cout <<"begin sub thread main ID: "<< this_thread::get_id()<< endl;//释放CPUfor(int var =0; var <10;++var){if(!is_exit)break;cout <<"in thread"<<var<<endl;this_thread::sleep_for(1s);}cout <<"end sub thread main ID:"<< this_thread::get_id()<< endl;}intmain(){{//thread th(ThreadMain);//出错}{thread th(ThreadMain);th.detach();//子线程与主线程分离，守护线程//注意：主线程退出后，子线程不一定退出}{thread th(ThreadMain);this_thread::sleep_for(1s);cout<<"主线程阻塞，等待子线程退出"<<endl;is_exit = true;//通知子线程退出th.join();//主线程阻塞，等待子线程退出cout<<"子线程已经退出"<<endl;}return0;}
