巩固C++(二)----多线程编程

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1 C++11 多线程编程

先来一个例子：

#include<iostream>#include<vector>#include<stdlib.h>#include<thread>#include<windows.h>using std::cout;using std::endl;using namespace std::this_thread;using std::thread;using std::vector;void print(int n){//打印的顺序是一定的，且完整度也会受到影响cout << "线程编号：" << get_id() << "\tn = " << n << endl;}int main(){//返回硬件线程上下文的估计的静态方法，自己定义多线程时，最好是其整数倍int thdNo = thread::hardware_concurrency();cout << "My Thread is " << thdNo << endl;vector<thread *> vec;for (int i = 0; i < thdNo * 2 - 1; i++){//建立多线程的过程,其实线程也是有优先级的vec.push_back(new thread(print, i));}for (auto it : vec){//加入多线程it->join();}system("pause");return 0;}

运行结果：

My Thread is 8线程编号：线程编号：5336        n = 4线程编号：7172  n = 9线程编号：8736  n = 6线程编号：7808  n = 10线程编号：8756  n = 3线程编号：7272  n = 7线程编号：5348  n = 11线程编号：6112  n = 2线程编号：8568  n = 5线程编号：8200  n = 12线程编号：6860  n = 87016    n = 0线程编号：6448  n = 14线程编号：7844  n = 1线程编号：8500  n = 13请按任意键继续. . .

待续....

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