#include <iostream>#include <string>using namespace std;class jianli{public:    void getvalue()    {        cin>>name>>age>>sex>>major;    }    void display()    {        cout<<"name:"<<name<<endl;        cout<<"age:"<<age<<endl;        cout<<"sex:"<<sex<<endl;        cout<<"major:"<<major<<endl;    }private:    string name;    int age;    char sex;    string major;};class jianli1:public jianli{public:    void getvalue1()    {        cin>>school;    }    void display1()    {        cout<<"school:"<<school<<endl;    }private:    string school;};class jianli2:public jianli{public:    void getvalue2()    {        cin>>pay;    }    void display2()    {        cout<<"pay:"<<endl;    }private:    double pay;};int main(){    jianli1 xiaohua;    jianli2 xiaohua2;    string a="langchao",b="lenovo";    string c;    xiaohua.getvalue();    xiaohua.getvalue1();    xiaohua2.getvalue2();    cin>>c;    if(c==a)    {        xiaohua.display();        xiaohua.display1();    }    if(c==b)    {        xiaohua.display();        xiaohua2.display2();    }    return 0;}