[C++][线程]如何利用std::thread把类的成员函数当作线程函数并传递参数

#include <iostream>
#include <thread>
using namespace std;

class B
{
public:
	int age = 18;
	void Say()
	{
		std::cout << "Say B" << std::endl;
	}
};


class A
{
public:
	void Say()
	{
		std::cout << "Say A" << std::endl;
	}
	void Start()
	{
		B b;
		std::thread t(&A::_start,this,b);
		t.detach();
	}
	private:
	void _start(B b)
	{
		Say();
		b.Say();
	}

};

int main()
{
	A a;
	a.Start();

}