有问题的程序

 #include <iostream>

#include <string.h>

using namespace std;

 

class Name

{

public:

Name(char *ch = " ");

void Display();

protected:

char m_name[15];

char m_family_name[15];

};

 

class Employee

{

public:

Employee(char *name = " ", char *add = " ", char *city = " ", char *post = " "):n(name)

{

strncpy(m_add, add, sizeof(m_add));

m_add[sizeof(m_add) - 1] = '/0';

strncpy(m_city, city, sizeof(m_city));

m_city[sizeof(m_city) - 1] = '/0';

strncpy(m_post, post, sizeof(m_post));

m_post[sizeof(m_post) - 1] = '/0';

}

// void ChangName(char *name = " ")

// {

// n(name);

// }

void Display();

protected:

Name n;

char m_add[100];

char m_city[50];

char m_post[10];

};

 

Name::Name(char *ch)

{

int i = 0, j = 0;

while(ch[i] != 32)

{

m_name[i] = ch[i];

i++;

}

m_name[i++] = '/0';

while (ch[i] != '/0')

{

m_family_name[j++] = ch[i++];

}

m_family_name[j] = '/0';

}

 

void Name::Display()

{

cout << m_name << "    " << m_family_name << endl;

}

/*

void Employee::ChangName(char *name)

{

strncpy(m_name, name, sizeof(m_name));

m_name[sizeof(m_name) - 1] = '/0';

}

*/

void Employee::Display()

{

// cout <<"name: " << m_name <<endl;

// cout << "name: " << n.Display() << endl;

cout << "address: " << m_add << endl;

cout << "city: " << m_city << endl;

cout << "post number: " << m_post << endl;

}

 

void main()

{

Employee em("张三", "shan gu da dao 48 hao", "XiAn city ShanXi Province", "710600");

em.Display();

Name M("jian yong");

M.Display();

}