练习7.9

对于Person类，添加读取和打印Person对象的操作。

#include <iostream>#include <string>using namespace std;struct Person{    string name;    string address;    string p_name() const{  return name; }    string p_address() const{   return address;  }    };istream &read(istream &input, Person &item){    input>>item.name>>item.address;    return input;    }ostream &print(ostream &output,const Person &item ){    output<<item.p_name()<<" "<<item.p_address();    return output;}int main(){    Person trans;    read(cin,trans);    print(cout,trans);    return 0;}