ex0304.cpp

来自「Visual+C+++6[1].0实用教程代码 Visual+C+++6[1]」· C++ 代码 · 共 139 行

// ex0304.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream.h>
#include <string.h>

class person
 { 
  char stu_no[10];  //学号
  char name[10];    //姓名
  char sex[3];     //性别
  char birth[12];   //出生年月

public:
 person(char *stu_no1, char *name1,char *sex1,char *birth1) 
  {
  strcpy(stu_no,stu_no1);
  strcpy(name,name1);
  strcpy(sex,sex1);
  strcpy(birth,birth1); 
}

  void display1()
   { 
   cout<<"学号:"<<stu_no<<endl;
   cout<<"姓名:"<<name<<endl;
   cout<<"性别:"<<sex<<endl;
   cout<<"出生年月:"<<birth<<endl;
   }

  void display2()
   { 
   cout<<stu_no<<"\t";
   cout<<name<<"\t";
   }
};

class score
{
  float chine, math, eng, gym;
  
 public:
  score(float chine1, float math1, float eng1, float gym1) 
  {
  chine=chine1;
  math=math1;
  eng=eng1;
  gym=gym1;
  }

  void display1()
   { 
   cout<<"语文:"<<chine<<endl;
   cout<<"数学:"<<math<<endl;
   cout<<"英语:"<<eng<<endl;
   cout<<"体育:"<<gym<<endl;
   }

  void display2()
   { 
   cout<<chine<<"\t";
   cout<<math<<"\t";
   cout<<eng<<"\t";
   cout<<gym<<"\t";
   }
};

class student: public person, public score
  {
	float average;
	char grade[7];

public:
 student(char *stu_no1, char *name1,char *sex1,char *birth1,float chine1, float math1, float eng1, float gym1)
  :person(stu_no1, name1, sex1, birth1),score(chine1, math1, eng1, gym1) 
 {
  average=(chine1+math1+eng1+gym1)/4;
  int a=average/10;
  switch(a) {
    case 10:
    case 9:
      strcpy(grade,"优秀");
      break;
    case 8:
      strcpy(grade,"良好");
      break;
    case 7:
      strcpy(grade,"中等");
      break;
    case 6:
      strcpy(grade,"及格");
      break;
    default:
      strcpy(grade,"不及格");
      break;
    }
  };

   void display1()
   { 
	   person::display1();
	   score::display1();
    cout<<"平均分:"<<average<<endl;
    cout<<"成绩等级:"<<grade<<endl;
   }

  void display2()
   {
	  person::display2();
	  score::display2();
   cout<<average<<"\t";
   cout<<grade<<"\n";
   }
};

int main(int argc, char* argv[])
{
	student myclass[10]={student("0321001","张军","男","1997-11-01",75,85,95,90),
 student("0321002","李浩","男","1997-11-12",76,85,79,90),
 student("0321003","李明","男","1997-12-02",68,75,86,83),
 student("0321004","刘芳","女","1997-12-22",84,65,59,78),
 student("0321005","王乐","女","1998-01-21",87,65,73,82),
 student("0321006","高天","男","1998-03-11",54,55,68,53),
 student("0321007","李山","男","1998-04-24",59,63,85,59),
 student("0321008","王强","男","1998-04-28",56,65,86,53),
 student("0321009","刘欣","女","1998-06-30",84,65,59,78),
 student("0321010","袁乐","女","1998-08-13",97,95,93,92)};

cout<<"<===  单一学生信息   ===>\n";
myclass[0].display1();
cout<<"\n<===  所有学生信息   ===>\n";
cout<<"学号\t姓名\t语文\t数学\t英语\t体育\t平均分\t等级\n";
for(int a=0; a<10;a++) {
	myclass[a].display2();
}
return 0;
}