#include<iostream>

 #include<string>

 using namespace std;

 //找了很久，似乎都是类放在Main方法体上

 class Person

 {

     private:

         string str_name;

     public:

         Person(string str)

         {

             str_name = str;

         }

         string Speak()

         {

             return str_name;

         }

 };

 int main()

 {

     string str_myname;

     Person *p = new Person("xtyang");

     str_myname = p->Speak();

     cout<<"My name is :"<<str_myname<<endl;

     //别忘了删除实例化的类

     delete(p);

 }