C++类模板成员函数类外实现

学习目标：能够掌握类模板中成员函数类外实现

代码示例：

#include<iostream>
#include<string>
using namespace std;
//类模板成员函数类外实现
template<class T1,class T2>
class Person
{
    
    
public:
       Person(T1 name, T2 age);
       //{
    
    
       //     this->m_Name = name;
       //     this->m_Age = age;
       //}
       void showPerson();
       //{
    
    
       //     cout << "姓名：" << this->m_Name << "年龄：" << this->m_Age << endl;
       //}
       T1 m_Name;
       T2 m_Age;
};
//构造函数类外实现
template<class T1,class T2>
Person<T1,T2>::Person(T1 name, T2 age)
{
    
    
              this->m_Name = name;
              this->m_Age = age;
}
//成员函数类外实现
template<class T1,class T2>
void Person<T1, T2>::showPerson()
{
    
    
       cout << "姓名：" << this->m_Name << " 年龄：" << this->m_Age << endl;
}
void test01()
{
    
    
       Person<string, int>P("Tom", 20);
}
int main()
{
    
    
       test01();
       return 0;
}

总结：类模板中成员函数类外实现时，需要加上模板参数列表