c++多个线程操作与互斥

典型的c++的卖票程序，看代码即可明白：

#include<iostream>#include<thread>#include<mutex>using namespace std;static int ticket = 100;mutex mytmx;void sellticket(){while (ticket >= 0){if (mytmx.try_lock()){cout << ticket << endl;ticket--;mytmx.unlock();}}}int main(){const int group = 3;thread mythread[group];for (int i = 0; i < 3; i++){mythread[i] = thread(sellticket);}for (int i = 0; i < 3; i++){mythread[i].join();}return 0;}