简单的多线程实例C++

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A Simple Code to Show Concurrence Using std::thread with Thread Header in C++

测试程序：

// thread example#include <iostream>       // std::cout  std::cin#include <thread>         // std::threadvoid foo(){    // do stuff...    for(int i = 0; i < 100; ++i)    {        cout << "foo()  i: " << i << "\n";    }}void bar(int x){    // do stuff...    for(int j = x; j < 200; ++j)    {        cout << "bar()  j: " << j << "\n";    }}int main(){    std::cout << "main, foo and bar now execute concurrently...\n\n";    std::thread first(foo);     // spawn new thread that calls foo()    std::thread second(bar, 100);  // spawn new thread that calls bar(0)        // synchronize threads:    first.join();                // pauses until first finishes    second.join();               // pauses until second finishes    std::cout << "foo and bar completed.\n\n";    std::cin.get();    return 0;}

测试结果：

实验分析：

可以看到每次的结果都是在“foo() i:”、i、以及“\n” 之间进行分隔，所以这是巧合，还是他们都属于元操作，不可分割?

与大家分享这个用C++实现的多线程编程。程序很简单，但是很能说明问题，可是当作一个入门程序。

参考资料：www.cplusplus.com

Constructive comments and reports of errors are always welcome.

Written by Josan.

2016/12/20

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