目录

线程处理函数

1.获取线程id：get_id

2.延时函数：sleep_for

3.放弃执行函数，调用另一个线程：yield

4.让当前线程休眠直到指定的时间点：sleep_until

---

线程处理函数

1.获取线程id：get_id

#include<iostream>
#include<thread>
#include<ctime>
#include<chrono>
using namespace std;
//using namespace this_thread; 省略用
void ThreadFunction()
{
	//this_thread是一个命名空间，可以用using语法省略
	cout << "id：" << this_thread::get_id()<<endl;//打印子线程的id
}
int main()
{
	cout << "id：" << this_thread::get_id() << endl;//打印主线程的id
	thread t1(ThreadFunction);
	t1.join();

	return 0;
}

2.延时函数：sleep_for

#include<iostream>
#include<thread>
#include<ctime>
#include<chrono>
using namespace std;
void ThreadFunction()
{
	cout << "线程id【" << this_thread::get_id() << "】启动" << endl;
	this_thread::sleep_for(2s);//延迟2s
	this_thread::sleep_for(chrono::seconds(3));//延迟3s
	cout << "线程id【" << this_thread::get_id() << "】结束" << endl;
}
int main()
{
	thread t1(ThreadFunction);
	t1.join();
	return 0;
}

3.放弃执行函数，调用另一个线程：yield

打印出来有点奇怪是正常的，因为是多线程在一起打印：

 

#include<iostream>
#include<thread>
#include<ctime>
#include<chrono>
using namespace std;
void ThreadYield(chrono::microseconds duration)//chrono::microseconds毫秒
{
	cout << "Yield线程id【" << this_thread::get_id() << "】启动" << endl;
	auto startTime = chrono::high_resolution_clock::now();
	auto endTime = startTime + duration;
	do
	{
		this_thread::yield();
		cout << 1 << endl;
	} while (chrono::high_resolution_clock::now() < endTime);
	
	cout << "Yield线程id【" << this_thread::get_id() << "】结束" << endl;
}
void ThreadOne()
{
	cout << "线程id【" << this_thread::get_id() << "】启动" << endl;
	cout << "线程id【" << this_thread::get_id() << "】结束" << endl;
}
int main()
{
	thread t1(ThreadYield,chrono::microseconds(2000));
	t1.detach();//用join看不出来效果
	thread t2(ThreadOne);
	t2.join();
	return 0;
}

4.让当前线程休眠直到指定的时间点：sleep_until

#include<iostream>
#include<thread>
#include<ctime>
#include<chrono>
#include<iomanip>
using namespace std;
void ThreadYield()
{
	time_t t= chrono::system_clock::to_time_t(chrono::system_clock::now());//获取当前的系统时间
	tm* ptm = new tm;//做一个指针
	localtime_s(ptm, &t);//转换为本地时间
	if (ptm!=nullptr)
	{
		//this_thread::sleep_until(chrono::system_clock::from_time_t(100)); 两种写法
		this_thread::sleep_until(chrono::system_clock::from_time_t(mktime(ptm)));
	}
	cout << put_time(ptm, "%X")<<endl;//打印时间
}

int main()
{
	ThreadYield();
	
	return 0;
}