大虾们帮看看哪错了

LZ没有搞清楚继承的意义。

#include<iostream>
using namespace std;
class Teacher{
private:
    char *name;
    int age;
    char *title;
public:
   Teacher(char a[10]=0,int b=0,char c[10]=0):name(a),age(b),title(c){}
    void get(){
    cout<<"input name"<<endl;
    cin>>name;
    cout<<"input age"<<endl;
    cin>>age;
    cout<<"input title"<<endl;
    cin>>title;
    }
   
    void display(){
     cout<<"the name is"<<name<<endl;
     cout<<"the age is"<<age<<endl;
     cout<<"the title is"<<title<<endl;
    }
};
class Cadre{
public:

Cadre(char a[10]=0,int b=0,char c[10]=0):name(a),age(b),post(c){}
    get(){
    cout<<"input name"<<endl;
    cin>>name;
    cout<<"input age"<<endl;
    cin>>age;
    cout<<"input post"<<endl;
    cin>>post;
    }
    display(){
     cout<<"the post is"<<post<<endl;
    }
private:
    char *name;
    int age;
    char *post;
};
class Teacher_Cadre:public Teacher,public Cadre{
private:   
    int wage;   
public:
    Teacher_Cadre(char a[10]=0,int b=0,char c[10]=0,char d[10]=0,int e=0):Teacher(a,b,c),Cadre(a,b,d),wage(e){}
    void show(){
    Teacher::display();
    }
    getwage(){
    cout<<"input wage"<<endl;
    cin>>wage;
    }
    put(){
    cout<<"the wage is"<<wage<<endl;
    cout<<"the post is"<<endl;
Cadre::display();
    }
};
 void main(){
Teacher_Cadre tc;
tc.Teacher::get();
tc.show();
tc.Cadre::get();
tc.getwage();
  tc.put();
}
这样还是错误，但如果把main换为int main()
{
    TeacherCadre teachercadre("xiaoqing",12,"boshi","teacher",1200);
    teachercadre.show ();
    return 0;
}
就对了，为什么只能初始化时赋值，不能调用函数输值啊

void main(){
Teacher_Cadre tc;
tc.Teacher::get();
tc.show();
tc.Cadre::get();
tc.getwage();
  tc.put();
}
为什么main这样写时不能输入？name的地址和a数组的地址一样，应该可以存入长度为9的字符串的但为什么提示错误