通过 C++ 读取二进制文件的问题

#include <iostream>
#include <string>
#include <fstream>
using namespace std;

class Person{
    private :
        string name;
        int age;
    public :
        Person(string name, int age){
            this->name = name;
            this->age = age;
        }
        void show(){
            cout << "Name : " + name + "\n" << "Age : " << age << \n####################\n";
        }
        ~Person(){
            cout << "object " + name + " deleted\n";
        }
};

int main(){
    ifstream file("./files/C63.bin", ios::binary | ios::in);
    if (!file.is_open()){
        cout << "Error opening the file..\n";
    } else {
        cout << "successfully opened the file..\nThe contents of the binary file are :\n";
        Person *p;
        while (file.good()){
            file.read((char *)p, sizeof(Person));
            cout << "hi\n";
            p->show();
        }
        file.close();
    }
    return 0;
}

在代码行 - “file.read((char *)p, sizeof(Person));”，出现分段错误。二进制文件存在于指定位置，并带有几个人物对象。可能出了什么问题？