高手来看下

一世豪杰

#include"name.h"

#include<string>

using std::string;

#include<iostream>

using std::ostream;
using std::istream;

#include<iomanip>

using std::setw;
using std::left;

#include<cstring>

using std::strlen;
using std::strcpy;

int Name::number = 0;

Name::Name(const char * const f , const char * const l)
{
    setFirstName(f);
    setLastName(l);
    Name::number ++;
}
Name::~Name()
{
    delete [] firstname;
    delete [] lastname;
    number--;
}

void Name::setFirstName( const char * const first)
{
    firstname = new char[ strlen( first ) + 1 ];
    strcpy( firstname , first );
}

void Name::setLastName( const char * const last)
{
    lastname = new char[ strlen( last ) + 1 ];
    strcpy( lastname , last );
}

char *Name::getFirstName()
{
    return firstname;
}

char *Name::getLastName()
{
    return lastname;
}

ostream &operator<<( ostream &output , const Name &m )
{
    output <<"Welcome to GradeBood System" <<'\n'<<"Number is: "<<setw(2)<<left<< m.number << '\t'<<"Name is: " << m.firstname <