1.类模板的使用方法：

//这里要加上模板声明
template <class T1,class T2>
class people{
private:
	T1 name;
	T2 age;
public:
	people(T1 a,T2 b);
	void say();
};

//这里要加上模板声明
template <class T1,class T2>
people<T1,T2>:: people(T1 a,T2 b):name(a),age(b){
	cout<<"this is constructor"<<endl;
}

//这里要加上模板声明
template <class T1,class T2>
void people<T1,T2>::say(){
	cout<<"my name is: "<<name <<",my age is: "<<age<<endl;
	cout<<typeid(name).name()<<" "<<typeid(age).name()<<endl;
}


int main(){
//跟普通对象创建一样，只是在类前面声明模板类型
people<string,int> p1("liuweiwei",10);
p1.say();

people<int,int> p2(100,23);
p2.say();

return 0;
}