C++primer plus第六版课后编程题答案10.2

#ifndef Person_H_
#define Person_H_
#include <string>
using namespace std;
class Person{
private:
static const int LIMIT=25;
string lname;
char fname[LIMIT];
public:
Person(){lname="default";fname[0]='\0';}
Person(const string &ln,const char *fn="Heyyou");
~Person();
void show()const;
void FormalShow()const;

};
#endif

#include <iostream>
#include "Person.h"
#include <string>
#include <cctype>
using namespace std;
/*
Person::Person()
{
}*/
Person::Person(const string &ln,const char*fn)//不要写成const char*fn="Heyyou"
{				//会发生重定义参数错误
cout<<"\n\nln address:"<<&ln<<endl;
lname=ln;
cout<<"lname address:"<<&lname<<endl;
int i=0;
for(;i<LIMIT&&fn[i]!='\0';i++)
fname[i]=fn[i];
fname[i]='\0';
}
Person::~Person()
{}

void Person::show()const
{
cout<<"\nlname1:"<<lname<<endl;
cout<<"lname address:"<<&lname<<endl;
cout<<"fname1:"<<fname<<endl;
//showChar(fname);
}
void Person::FormalShow()const
{

cout<<"\nlname address:"<<&lname<<endl;
cout<<"fname2:"<<fname<<endl;
cout<<"lname2:"<<lname<<endl;
}

void showChar(const char fn[])
{
for(int i=0;fn[i]!='\0';i++)
cout<<fn[i];

}

#include <iostream>
#include "Person.h"
using namespace std;
void main102()
{
Person p;
p.show();
p.FormalShow();

Person p1("Smythe");
p1.show();
p1.FormalShow();
Person p2("Dimwiddy","Sam");
p2.show();
p2.FormalShow();
cin.get();

}