1 #include <iostream>
 2 #include<thread>
 3 #include <ctime>
 4 #include<chrono>
 5 
 6 using namespace std;
 7 
 8 #define NAME_LINE 40
 9 
10 
11 volatile clock_t startt, endt;
12 
13 void prt() {
14     cout << "cout"<<endl;
15 };
16 
17 void f1(int n) {
18     for (int i = 0; i < n; ++i) {
19         std::cout << "Thread " << n << " executing\n";
20         std::this_thread::sleep_for(std:: chrono::milliseconds(10));
21         prt();
22     }
23 }
24 
25 void f2(int& n) {
26     for (int i = 0; i < 5; ++i) {
27         std::cout << "Thread 2 executing\n"; 
28         ++n;
29         std::this_thread::sleep_for(std::chrono::milliseconds(10));
30         prt();
31     }
32 }
33 
34 
35 void thread_task(int n) {
36     std::this_thread::sleep_for(std::chrono::seconds(n));
37     std::cout << "hello thread "
38         << std::this_thread::get_id()
39         << " paused " << n << " seconds" << std::endl;
40     
41 }
42 
43 int main() 
44 {
45     //experiment 1
46     int n = 0;
47     std::thread t1;                  // t1不再是线程
48     std::thread t2(f1, n+1);         // 
49     std::thread t3(f2, std::ref(n)); //
50     std::thread t4(std::move(t3));   //t4现在在跑f2()，t3不再是线程了
51 
52     t2.join();  // 主线程阻塞，直到线程t2跑完它的传入函数
53     t4.join();
54     cout << "final value of n is:" << n << endl;
55 
56 
57     // experiment 2
58     std::thread threads[5];
59     std::cout << "Spawning 5 threads...\n";
60     for (int i = 0; i < 5; ++i) {
61         threads[i] = std::thread(thread_task,i+1);
62     }
63     std::cout << "Done of spawning threads! Now wait for them to join \n";
64     for (auto& t : threads) {
65         t.join();
66     }
67     std::cout << "All threads joined.\n";
68 
69     return EXIT_SUCCESS;
70 }

 

C++11 并发指南二(std::thread 详解) - Haippy - 博客园 (cnblogs.com)