c语言程序的设计之学生成绩管理系统精华版

1、./ 111.cpp : 定义控制台应用程序的入口点 。/#include "stdafx.h"#include<stdlib.h>#include<conio.h>#include<string.h>#define A Ls->si.kaoshi*0.7+Ls->si.pingshi*0.3#define B Ls->si.kaoshi1*0.7+Ls->si.pingshi1*0.3#define MAX 1000#include <Windows.h>BOOL SetConsoleColor(WO

2、RD wAttributes)HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);if (hConsole = INVALID_HANDLE_VALUE)return FALSE;return SetConsoleTextAttribute(hConsole, wAttributes);/ 使用色彩typedef structchar name20;int num;.下载可编辑 .int classes;int age;char sex10;int bianhao;char mingcheng20;intxuefen;int kaoshi;int

3、 pingshi;int bianhao1;char mingcheng120;intxuefen1;int kaoshi1;int pingshi1;student;typedef structstudent sMAX;int length;Lstudent;void welcome()/*界面函数 */.下载可编辑 .SetConsoleColor(FOREGROUND_RED);printf("n");printf("欢迎进入成绩管理系统n");printf("n");printf("n");SetConso

4、leColor(FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);printf("n");printf("0.读取信息 n");printf("1.输入成绩n");printf("2.输出成绩n");printf("3.插入成绩n");printf("4.删除成绩 n");printf("5.查找成绩n");printf("6.修改成绩 n");printf("7.不及格

5、名单 n");printf("8.平均成绩及排名 n");printf("9.存储信息n");printf("10.退出成绩管理系统 n");printf("n");.下载可编辑 .void read(Lstudent *Ls,FILE *fp)system("cls");if(fp=fopen("score system.txt","rt+")=NULL)printf(" 无法打开此文件n");printf(" 请

6、按回车键返回主界面");getchar();elsewhile(!feof(fp)putchar(getc(fp);printf(" 按回车键返回主界面");getchar();getchar();fclose(fp);void input(Lstudent *Ls)/*输入学生的成绩*/ int n; int i;.下载可编辑 .system("cls");printf("请输入学生数:");scanf("%d",&n);Ls->length=n;for(i=0;i<n;i+)pri

7、ntf("输入第 %d 个学生的数据:n",i+1);printf("姓名 :");scanf("%s",&Ls->);printf("学号 :");scanf("%d",&Ls->si.num);printf("班级 :");scanf("%d",&Ls->si.classes);printf("年龄 :");scanf("%d",&Ls->si

8、.age);printf("性别 :");scanf("%s",&Ls->si.sex);printf("课程编号 :");scanf("%d",&Ls->si.bianhao);printf("课程名称 :");scanf("%s",&Ls->si.mingcheng);printf("学分 :");.下载可编辑 .scanf("%d",&Ls->si.xuefen);print

9、f("考试成绩 :");scanf("%d",&Ls->si.kaoshi);printf("平时成绩 :");scanf("%d",&Ls->si.pingshi);printf("课程编号 :");scanf("%d",&Ls->si.bianhao1);printf("课程名称 :");scanf("%s",&Ls->si.mingcheng1);printf("学

10、分 :");scanf("%d",&Ls->si.xuefen1);printf("考试成绩 :");scanf("%d",&Ls->si.kaoshi1);printf("平时成绩 :");scanf("%d",&Ls->si.pingshi1);printf(" 录入成绩完成 ，请按回车键返回主界面");getchar();getchar();void output(Lstudent *Ls)/*输出学生的成绩信息*/.

11、下载可编辑 .int i;system("cls");for(i=0;i<Ls->length;i+)printf(" n");printf(" 姓名学号 班级 年龄 性别 n");printf(" n");printf("%-6.6s%-4d%-4d%-4d%-6.6sn",Ls->,Ls->si.num,Ls->si.classes,Ls->si.age,Ls->si.sex);printf(" n");printf

12、(" n");printf(" 课程1 编号 名称 学分 考试成绩 平时成绩 综合成绩 n");printf(" n");printf(" %-4d %-6.6s %-4d %-4d %-4d %-4.1fn",Ls->si.bianhao,Ls->si.mingcheng,Ls->si.xuefen,Ls->si.kaoshi,Ls->si.pingshi,A);printf(" n");printf(" n");.下载可编辑 .printf(

13、" 课程2 编号 名称 学分 考试成绩 平时成绩 综合成绩 n");printf(" n");printf(" %-4d %-6.6s %-4d %-4d %-4d %-4.1fn",Ls->si.bianhao1,Ls->si.mingcheng1,Ls->si.xuefen1,Ls->si.kaoshi1,Ls->si.pingshi1,B);printf(" n");printf(" ");printf(" 请按回车键回到主界面");get

14、char();getchar();void insert(Lstudent *Ls)/*插入学生成绩信息*/int n,i,l;system("cls");l=Ls->length;.下载可编辑 .printf("请输入要插入的学生数:");scanf("%d",&n);for(i=0;i<n;i+)printf("请输入插入第%d 个学生的数据:n",i+1);printf("姓名 :");scanf("%s",&Ls->si+1.name

15、);printf("学号 :");scanf("%d",&Ls->si+1.num);printf("班级 :");scanf("%d",&Ls->si+1.classes);printf("年龄 :");scanf("%d",&Ls->si+1.age);printf("性别 :");scanf("%s",&Ls->si+1.sex);printf("课程编号 :&qu

16、ot;);scanf("%d",&Ls->si+1.bianhao);printf("课程名称 :");scanf("%s",&Ls->si+1.mingcheng);printf("学分 :");scanf("%d",&Ls->si+1.xuefen);printf("考试成绩 :");.下载可编辑 .scanf("%d",&Ls->si+1.kaoshi);printf("平时成绩 :&

17、quot;);scanf("%d",&Ls->si+1.pingshi);printf("课程编号 :");scanf("%d",&Ls->si+1.bianhao1);printf("课程名称 :");scanf("%s",&Ls->si+1.mingcheng1);printf("学分 :");scanf("%d",&Ls->si+1.xuefen1);printf("考试成绩 :&qu

18、ot;);scanf("%d",&Ls->si+1.kaoshi1);printf("平时成绩 :");scanf("%d",&Ls->si+1.pingshi1);Ls->length+=n;printf(" 插入成绩完成 ，请按回车键返回主界面");getchar();getchar();void delet(Lstudent *Ls)/*按学号删除 */int i=0,j,x;.下载可编辑 .system("cls");printf("请输入要删

19、除的学生的学号:");scanf("%d",&x);while(i<Ls->length)&&(Ls->si.num!=x)i+;if(i<Ls->length)for( j=i;j<Ls->length;j+)Ls->sj=Ls->sj+1;Ls->length-;printf("已成功删除 ");elseprintf("对不起 ，无此学生成绩 ，无法删除 n");printf(" 请按回车键返回主界面");getcha

20、r();getchar();void search(Lstudent *Ls)/*按学号查找 */int i=0,x;system("cls");.下载可编辑 .printf("请输入要查找学生的学号:");scanf("%d",&x);while(i<Ls->length)&&(Ls->si.num!=x)i+;if(i<Ls->length)printf(" n");printf(" 姓名学号 班级 年龄 性别 n");printf(&q

21、uot; n");printf("%-6.6s%-4d%-4d%-4d%-6.6sn",Ls->,Ls->si.num,Ls->si.classes,Ls->si.age,Ls->si.sex);printf(" n");printf(" n");printf(" 课程1 编号 名称 学分 考试成绩 平时成绩 综合成绩 n");printf(" n");printf(" %-4d %-6.6s %-4d %-4d %-4d %-4.

22、1fn",Ls->si.bianhao,Ls->si.mingcheng,Ls->si.xuefen,Ls->si.kaoshi,Ls->si.pingshi,A);printf(" .下载可编辑 .n");printf(" n");printf(" 课程2 编号 名称 学分 考试成绩 平时成绩 综合成绩 n");printf(" n");printf(" %-4d %-6.6s %-4d %-4d %-4d %-4.1fn",Ls->si.bian

23、hao1,Ls->si.mingcheng1,Ls->si.xuefen1,Ls->si.kaoshi1,Ls->si.pingshi1,B);printf(" n");printf(" ");elseprintf("未找到此学生 n");printf(" 请按回车键回到主界面");getchar();getchar();.下载可编辑 .void save(Lstudent *Ls,FILE *fp)/*将学生成绩信息存储在文件score system.txt中 */int i;system

24、("cls");if(fp=fopen("score system.txt","wt+")=NULL)printf(" 无法打开此文件n");elsefor(i=0;i<Ls->length;i+)fprintf( fp,"n");fprintf( fp," 姓名 学号班级 年龄性别 n");fprintf( fp,"n");fprintf(fp," %-6.6s %-4d %-4d %-4d %-6.6s n",Ls-&g

25、t;,Ls->si.num,Ls->si.classes,Ls->si.age,Ls->si.sex);fprintf( fp,"n");fprintf(fp," n");fprintf(fp," 课程1 编号 名称 学分考试成绩 平时成绩 综合成绩 n");fprintf( fp," n");.下载可编辑 .fprintf(fp," %-4d %-6.6s %-4d %-4d %-4d%-4.1fn",Ls->si.bianhao,Ls->si

26、.mingcheng,Ls->si.xuefen,Ls->si.kaoshi,Ls->si.pingshi,A);fprintf(fp," n");fprintf(fp," n");fprintf( fp," 课程 2 编号 名称 学分 考试成绩 平时成绩 综合成绩 n");fprintf(fp," n");fprintf(fp," %-4d %-6.6s %-4d %-4d %-4d %-4.1fn",Ls->si.bianhao1,Ls->si.mingchen

27、g1,Ls->si.xuefen1,Ls->si.kaoshi1,Ls->si.pingshi1,B);fprintf(fp," n");fprintf( fp," "); / 注中括号在循环语句中的使用.下载可编辑 .printf(" 信息已存储在名为“score system.txt的文件中 ”,按回车键返回主界面");fclose(fp);getchar();getchar();void aver(Lstudent *Ls)/计算平均分并排序int i=0,n,j,k;float a20,t;for(i=0;i

28、<Ls->length;i+)/逐个赋值 ，千万不能少ai=(A+B)/2;system("cls");for(k=0;k<Ls->length;k+)/ 此处为冒泡排序法for( j=1;j<Ls->length;j+)for(i=0;i<Ls->length-j;i+)if(ai<ai+1)t=ai;ai=ai+1;.下载可编辑 .ai+1=t;printf(" n");printf(" 名次姓名 平均分 n");printf(" n");for(i=0;i

29、<Ls->length;i+)/已输入学生长度为Ls->lengthprintf(" %-4d%-6.6s %-4.1fn",i+1,Ls->,ai);printf(" n");/注意有调用顺序问题getchar();getchar();void nopass(Lstudent *Ls)/?列出不及格学生清单（ 学号 、姓名 、不及格的课程和成绩）int n;system("cls");int i;printf(" 不及格学生信息n");for(i=0;i<Ls->

30、length;i+)if(A<60)printf(" n");.下载可编辑 .printf("姓名 学号 课程 考试成绩 n");printf("n");printf(" %-6.6s %-4d %-6.6s%-4.1fn",Ls->,Ls->si.num,Ls->si.mingcheng,A);printf("n"); if(B<60) printf(" n");printf("姓名 学号 课程 考试成绩 n"

31、);printf("n");printf(" %-6.6s %-4d %-6.6s%-4.1fn",Ls->,Ls->si.num,Ls->si.mingcheng1,B);printf("n");printf(" 请按回车键回到主界面");getchar();getchar();void change(Lstudent *Ls)/修改成绩int i=0,n;printf(" 请输入要修改的学号:");scanf("%d",&n);.下

32、载可编辑 .if(Ls->si.num=n)printf("n请输入学生姓名:");fflush(stdin);scanf("%s",&Ls->);printf("n请输入学生班级:");fflush(stdin);scanf("%s",&Ls->si.classes);printf("n请输入学生年龄:");fflush(stdin);scanf("%d",&Ls->si.age);printf("n请

33、输入学生性别:");fflush(stdin);scanf("%s",&Ls->si.sex);printf("n请输入课程1 编号 :");fflush(stdin);scanf("%d",&Ls->si.bianhao);printf("n请输入课程名称:");fflush(stdin);scanf("%s",&Ls->si.mingcheng);printf("n请输入课程学分:");fflush(stdin);.下载

34、可编辑 .scanf("%d",&Ls->si.xuefen);printf("n请输入课程考试成绩:");fflush(stdin);scanf("%d",&Ls->si.kaoshi);printf("n请输入课程平时成绩:");fflush(stdin);scanf("%d",&Ls->si.pingshi);printf("n请输入课程 2 编号 :");fflush(stdin);scanf("%d",&

35、amp;Ls->si.bianhao1);printf("n请输入课程名称 :");fflush(stdin);scanf("%s",&Ls->si.mingcheng1);printf("n请输入课程学分 :");fflush(stdin);scanf("%d",&Ls->si.xuefen1);printf("n请输入课程考试成绩:");fflush(stdin);scanf("%d",&Ls->si.kaoshi1);printf("n请输入课程平时成绩:");fflush(stdin);s