int a = 10;
	char b;
	bool c;
	string d;

	cout << "变量a的地址：" << &a << endl;
	cout << "变量b的地址：" << &b << endl;
	cout << "变量c的地址：" << &c << endl;
	cout << "变量d的地址：" << &d << endl;
	cout <<"a占用内存大小" << sizeof(a) << endl;
	cout << "变量b的内存地址：" << (long long)&b << endl;
	cout << "变量b的地址：" << (void*)&b << endl;
	cout << "变量b的地址：" << (int*)&b << endl;