1. Thread with lambda function

#include<iostream>
#include<thread>
#include<vector>
#include<algorithm>

int main()
{
	std::vector<std::thread> threadVec;
	for(int i=0; i<5; ++i){
		threadVec.push_back(std::thread([]() 
		{
			std::cout<<"thread function\n";
		}));
	}
	std::cout<<"main thread\n";

	std::for_each(threadVec.begin(), threadVec.end(), [](std::thread & thr) 
	{
		thr.join();
	});
	return 0;
}

2. 并发程序的特性

	for(int i=0; i<5; ++i){
		threadVec.push_back(std::thread([i]() 
		{
			std::cout<<"thread function "<<i <<"\n";
		}));
	}
	std::cout<<"main thread\n";