student.cpp

此系统为学生管理系统

//student.cpp
#include"StdAfx.h"
#include<string.h>
#include"student.h"
//有参构造函数
cstudent::cstudent(char *nam,char *psex,char *num,
				   char *maj,double mat,double cp,double eng)
{
	name=new char[strlen(nam)+1];
	strcpy(name,nam);
	sex=new char[strlen(psex)+1];
	strcpy(sex,psex);
	number=new char[strlen(num)+1];
	strcpy(number,num);
	major=new char[strlen(maj)+1];
	strcpy(major,maj);
	math=mat;
	cpp=cp;
	english=eng;
	next=NULL;
}
//无参构造函数
cstudent::cstudent()
{
	 name=0,sex=0,number=0,major=0;
	 math=0,cpp=0,english=0;
	 next=NULL;
}
//拷贝构造函数
cstudent::cstudent(cstudent &p)
{  name=new char[strlen(p.name)+1];
     strcpy(name,p.name);
   sex=new char[strlen(p.sex)+1];
     strcpy(sex,p.sex);
   number=new char[strlen(p.number)+1];
     strcpy(number,p.number);
   major=new char[strlen(p.major)+1];
     strcpy(major,p.major);
   math=p.math,cpp=p.cpp;
   english=p.english;
	next=&p;
}
//析构函数
 cstudent::~cstudent()
{  
	 if(name!=NULL)
	  delete[]name;
	 if(sex!=NULL)
	  delete sex;
	 if(number!=NULL)
	  delete[]number;
	 if(major!=NULL)
	  delete[]major;
}

//给已有结点赋值
 void cstudent::setstudent(char *nam,char *psex,char *num,
			               char *maj,double mat,double cp,double eng)
{

	name=new char[strlen(nam)+1];
	strcpy(name,nam);
	sex=new char[strlen(psex)+1];
	strcpy(sex,psex);
	number=new char[strlen(num)+1];
	strcpy(number,num);
	major=new char[strlen(maj)+1];
	strcpy(major,maj);
	math=mat;
	cpp=cp;
	english=eng;
}

char *cstudent::getname()//得到名字
{
	 return name;
}
char *cstudent::getsex()
{ 
	 return sex;
}
char *cstudent::getnumber()//得到学号
{
	  return number;
}
char *cstudent::getmajor()//得到专业
{
	  return major;
}
double  cstudent::getmath()//得到数学成绩
{
	  return math;
}

double cstudent:: getcpp()//得到C++成绩
{
	  return cpp;
}
 double cstudent::getenglish()//得到英语成绩
{
	 return english;
}
 double cstudent::getallscore()//得到总成绩
{
	 return (math+cpp+english);
}
double  cstudent::average()//得到平均成绩
{
		  return (math+cpp+english)/3.0;
}