程序代码：

/**
没有const。
char *name;
**/
#include <iostream>
#include <cstring>
using namespace std;

class Student
{
public:
    Student(int n,char *na,float s):no(n),score(s)
    {
        name=new char[strlen(na)+1];
        strcpy(name,na);
    }
    Student(const Student& s):no(s.no),score(s.score)
    {
        name = new char[strlen(s.name)+1];
        strcpy(name,s.name);
    }
    ~Student()
    {
        if(name!=NULL)
            delete []name;
    }
    void display()const
    {
        cout << no << " " << name << " " << score <<endl;
    }
protected:

private:
    const int no;
    char *name;
    const float score;
};

int main()
{
    const Student stu1(1,"wangming",99);
    stu1.display();
    const Student stu2(stu1);
    stu2.display();
    return 0;
}

程序代码：

/**
包含const。
const char * name;
**/
#include <iostream>
#include <cstring>
using namespace std;

class Student
{
public:
    Student(int n,char *na,float s):no(n),score(s)
    {
        name=new char[strlen(na)+1];
        strcpy(name,na);
    }
    Student(const Student& s):no(s.no),score(s.score)
    {
        name = new char[strlen(s.name)+1];
        strcpy(name,s.name);
    }
    ~Student()
    {
        if(name!=NULL)
            delete []name;
    }
    void display()const
    {
        cout << no << " " << name << " " << score <<endl;
    }
protected:

private:
    const int no;
    const char *name;
    const float score;
};

int main()
{
    const Student stu1(1,"wangming",99);
    stu1.display();
    const Student stu2(stu1);
    stu2.display();
    return 0;
}