C++11中已经拥有了一个更好用的用于线程操作的类`std::thread`。 默认构造函数：  thread() noexcept;  构造一个任何线程不执行的线程对象。 初始化函数： ~~~ template <class Fn, class... Args> explicit thread (Fn&& fn, Args&&... args); ~~~ 构造一个线程对象，可以开启线程执行  新执行的线程调用函数fn，并传递args作为参数  fn  可以指向函数，指向成员，或是移动构造函数  args…  传递给fn的参数，这些参数可以移动赋值构造。如果fn是一个成员指针，那么第一个args参数就必须是一个对象，或是引用，或是指向该对象的指针。 拷贝构造函数：  thread (const thread&) = delete;  删除构造的线程 现在介绍几个成员函数：  **std::thread::join**  该函数返回时，线程执行完成。  当 a thread 调用Join方法的时候，MainThread 就被停止执行，直到 a thread 线程执行完毕。 ~~~ #include <iostream> // std::cout #include <thread> // std::thread, std::this_thread::sleep_for #include <chrono> // std::chrono::seconds void pause_thread(int n) { std::this_thread::sleep_for (std::chrono::seconds(n)); std::cout << "pause of " << n << " seconds ended\n"; } int main() { std::cout << "Spawning 3 threads...\n"; std::thread t1 (pause_thread,1); std::thread t2 (pause_thread,2); std::thread t3 (pause_thread,3); std::cout << "Done spawning threads. Now waiting for them to join:\n"; t1.join(); t2.join(); t3.join(); std::cout << "All threads joined!\n"; return 0; } //输出 Output (after 3 seconds): Spawning 3 threads... Done spawning threads. Now waiting for them to join: pause of 1 seconds ended pause of 2 seconds ended pause of 3 seconds ended All threads joined! ~~~ **std::thread::detach**  分离线程的对象，使它们从彼此独立地执行所表示的线程。这两个线程继续没有阻止，也没有以任何方式同步。注意，当任一结束执行，其资源被释放。 ~~~ #include <iostream> // std::cout #include <thread> // std::thread, std::this_thread::sleep_for #include <chrono> // std::chrono::seconds void pause_thread(int n) { std::this_thread::sleep_for (std::chrono::seconds(n)); std::cout << "pause of " << n << " seconds ended\n"; } int main() { std::cout << "Spawning and detaching 3 threads...\n"; std::thread (pause_thread,1).detach(); std::thread (pause_thread,2).detach(); std::thread (pause_thread,3).detach(); std::cout << "Done spawning threads.\n"; std::cout << "(the main thread will now pause for 5 seconds)\n"; // give the detached threads time to finish (but not guaranteed!): pause_thread(5); return 0; } //输出 Output (after 5 seconds): Spawning and detaching 3 threads... Done spawning threads. (the main thread will now pause for 5 seconds) pause of 1 seconds ended pause of 2 seconds ended pause of 3 seconds ended pause of 5 seconds ended ~~~ 上一段代码 深入理解： ~~~ #include <iostream> #include <thread> using namespace std; class Foo { void bar_i() { cout << "hello" << endl; } public: void bar() { auto func = std::bind(&Foo::bar_i, this); std::thread t(&Foo::bar_i, std::ref(*this)); t.join(); } }; int main() { Foo f; f.bar(); } ~~~ 如果你使用的是VS2015，那么恭喜你，上面的代码你不会运行成功。