求助 c＋＋类组合疑问

#2

sunkaidong2008-01-18 18:04

#include"iostream.h"
#include"string.h"
class StudentID
{
  public:
  StudentID(){}
  StudentID(int id)
  {
    value=id;
    cout<<"assigning student id"<<value<<endl;
  }
~StudentID()
{cout<<"Destructing id"<<value<<endl;
}
protected:
int value;
};
class Student
{
public:
Student(char *pname="noname",int ssID=0)
{
    cout<<"construcing:"<<pname<<endl;
    strcpy(name,pname);
    name[sizeof(name)-1]='\0';
   StudentID     id(ssID);
}
protected:
char name[20];
StudentID id;
};
void main()
{
Student s("randy",9818);
}
我的需要默认构造函数的,要不编译不能通过啊

#3

lonmaor2008-01-18 19:52

代码风格很糟糕。字体也很糟糕。
[color=#800000]#include"iostream.h"
#include"string.h"

class StudentID {
public:
    StudentID(int id=0)
    {
        value=id;
        cout<<"assigning student id"<<value<<endl;
    }
    ~StudentID()
    {
        cout<<"Destructing id"<<value<<endl;
    }
protected:
    int value;
};

class Student {
public:
    Student(char *pname="noname",int ssID=0)
    {
        cout<<"construcing"<<pname<<endl;
        strcpy(name,pname);
        name[sizeof(name)-1]='\0';
        StudentID id(ssID);
    }
protected:
    char name[20];
    StudentID id;
};

int main()
{
Student s("randy",9818);
return 0;
}
[/color]

[[italic] 本帖最后由 lonmaor 于 2008-1-18 19:56 编辑 [/italic]]

#4

sunkaidong2008-01-18 21:41

楼上的没必要这样说..你即使强也是一步步来的.这样说下次就没人敢发帖子了

求助 c＋＋类组合 疑问