C++11中已經擁有了一個更好用的用於執行緒操作的類std::thread。

預設建構函式：
thread() noexcept;
構造一個任何執行緒不執行的執行緒物件。

初始化函式：

template <class Fn, class... Args>
explicit thread (Fn&& fn, Args&&... args);

構造一個執行緒物件，可以開啟執行緒執行
新執行的執行緒呼叫函式fn，並傳遞args作為引數
fn
可以指向函式，指向成員，或是移動建構函式
args…
傳遞給fn的引數，這些引數可以移動賦值構造。如果fn是一個成員指標，那麼第一個args引數就必須是一個物件，或是引用，或是指向該物件的指標。

拷貝建構函式：
thread (const thread&) = delete;
刪除構造的執行緒

現在介紹幾個成員函式：
std::thread::join
該函式返回時，執行緒執行完成。
當 a thread 呼叫Join方法的時候，MainThread 就被停止執行，直到 a thread 執行緒執行完畢。

#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;
}

//輸出
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
分離執行緒的物件，使它們從彼此獨立地執行所表示的執行緒。這兩個執行緒繼續沒有阻止，也沒有以任何方式同步。注意，當任一結束執行，其資源被釋放。

#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;
}
//輸出
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

上一段程式碼 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，那麼恭喜你，上面的程式碼你不會執行成功。