c++成员函数指针

#include <iostream>

#include <string>

#include <vector>

#include <algorithm>

using namespace std;

class person

{

public:

    person(string str):name(str) {}

    int testName(){

        cout<<"LINE:"<<__LINE__<<endl;

        return !(name=="");

    }

    string getName(){

        cout<<"LINE:"<<__LINE__<<endl;

        return name;

    }

    string name;

private:

};

void out(person &one, string (person::*mem_fun)())

{

    (one.*mem_fun)();

}

int main()

{

    int(person::*pTestName)() = person::testName;

    string(person::*pGetName)() = person::getName;

    person *p_xiaohong = new person("xiaohong");

    (p_xiaohong->*pTestName)();

    (p_xiaohong->*pGetName)();

    string person::*pPersonName = &person::name;    //如果name是private的，会编译错误

    cout<< p_xiaohong->*pPersonName << endl;

    out(*p_xiaohong, person::getName);

    out(*p_xiaohong, pGetName);

    return 0;

}