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#include<stdio.h>
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#include<stdlib.h>
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#include <string.h>
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struct course//先定义两个结构体^_^,一个是课程信息，另外一个是学生选课的结构图。
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{
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int num;//课程编号
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char name[20];//课程名称
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char kind[10];//课程性质
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int time;//总学时
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int ttime;//授课学时
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int etime;//实验上级学时
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int mark;//学分
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int term;//学期
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};
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struct student
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{
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int snum;//学号
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int cnum;//课程编号
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char cname[20];//课程名称
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};
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void insert()//课程信息录入
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{
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int mai_n();
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FILE *fp;
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struct course c;
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int count;
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int i;
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if((fp=fopen("course.txt","a+"))==NULL)
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{
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printf("cannot open file\n");
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}
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printf("\n 请输入课程门数:\n");
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scanf("%d",&count);
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printf("课程编号 课程名称 课程性质(公共课/必修课) 总学时 授课学时 实验或上机学时 学分 开课学期(年份):\n");
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for(i=0;i<count;i++)
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{
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scanf("%d %s %s %d %d %d %d %d",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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fprintf(fp,"%d %s %s %d %d %d %d %d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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fclose(fp);
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printf("已保存！");
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system("pause");
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system("cls");//清屏
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mai_n();
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}
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void browser()//课程信息浏览
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{
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int mai_n();
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FILE *fp;
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struct course c;
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int a;
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("\nCannot open course!\n");
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}
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分开课学期:\n");
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for(;!feof(fp);)
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{
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fscanf(fp,"%d %s %s %d %d %d %d %d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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printf("%5d%12s%9s%9d%9d%11d%11d%11d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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fclose(fp);
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printf("\n1-返回菜单；2-退出系统\n");
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scanf("%d",&a);system("cls");//清屏
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if(a==1)
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mai_n();
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else
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exit(0);
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}
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void search()//课程信息查询
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{
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int mai_n();
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FILE *fp;
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struct course c;
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int xuefen,time;
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char kind[10];
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int a,b;
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printf("1.按学分查询./ /2.按课程性质查询./ /3.按开课学期查询\n");
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printf("请选择查询方式，输入选项数字： ");
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scanf("%d",&b);
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if(b==1)
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{
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printf("\n 请输入要查询的学分:\n");
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scanf("%d",&xuefen);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("\nCannot open course!\n");
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}
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期:\n");
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for(;!feof(fp);)//文件到结尾前运行
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{fscanf(fp,"%d%s%s%d%d%d%d%d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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if(c.mark==xuefen)
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printf("%5d%12s%9s%9d%9d%11d%11d%11d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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}
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else if(b==2){
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printf("\n 请输入要查询的课程性质:\n");
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scanf("%s",&kind);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("\nCannot open course!\n");
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}
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期:\n");
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for(;!feof(fp);)
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{
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fscanf(fp,"%d%s%s%d%d%d%d%d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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if(strcmp(c.kind,kind)==0)
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printf("%5d%12s%9s%9d%9d%11d%11d%11d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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}
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else if(b==3){
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printf("\n 请输入要查询的课程开课学期；\n");
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scanf("%d",&time);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("\nCannot open course!\n");
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}
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分 开课学期:\n");
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for(;!feof(fp);)
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{fscanf(fp,"%d%s%s%d%d%d%d%d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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if(c.term==time)
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printf("%5d%12s%9s%9d%9d%11d%11d%11d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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}
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else{
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printf("输入错误！");
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exit(1);
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}
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fclose(fp);
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printf("\n1-返回菜单；2-退出系统\n");
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scanf("%d",&a);system("cls");//清屏
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if(a==1)
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mai_n();
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else
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exit(0);
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}
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void xuanke_information()//统计选课情况
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{
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int mai_n();
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int total=0;
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int a;
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FILE *fp;
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struct student s;
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if((fp=fopen("student.txt","r"))==NULL)//文件没有内容报错
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{
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printf("\nCannot open student!\n");
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}
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printf(" 学号 课程编号 课程名称\n");
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for(;!feof(fp);)
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{fscanf(fp,"%d%d%s\n",&s.snum,&s.cnum,&s.cname);
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total++;
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printf("%7d%9d%13s\n",s.snum,s.cnum,s.cname);
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}
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printf("\n 选课学生总人数为：%d 人",total);
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fclose(fp);
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printf("\n1-返回菜单；2-退出系统\n");
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scanf("%d",&a);system("cls");//清屏
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if(a==1)
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mai_n();
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else
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exit(0);
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}
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void xuan_ke()//学生选修课程
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{
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int mai_n();
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struct student s;
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struct course c;
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int a;
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FILE *fp;
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if((fp=fopen("course.txt","r"))==NULL)//文件没有内容报错
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{
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printf("\nCannot open course!\n");
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}
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验或上机学时 学分开课学期:\n");
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for(;!feof(fp);)
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{
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fscanf(fp,"%d %s %s %d %d %d %d %d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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printf("%5d%12s%9s%9d%9d%11d%11d%11d\n",c.num,c.name,c.kind,c.time,c.ttime,c.etime,c.mark,c.term);
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}
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fclose(fp);
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printf("*@********#*******************************&****^**^*****&********************************#*****@**\n");
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printf("\n 请输入您的学号 及 您要选择的课程编号:\n");
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scanf("%d%d",&s.snum,&s.cnum);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("\nCannot open course!\n");
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}
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for(;!feof(fp);)
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{
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fscanf(fp,"%d %s %s %d %d %d %d %d\n",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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if(s.cnum==c.num)
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break;
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}
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fclose(fp);
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if((fp=fopen("student.txt","a+"))==NULL)
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{
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printf("\nCannot open student!\n");
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}
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fprintf(fp,"%d %d %s\n",s.snum,s.cnum,c.name);
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fclose(fp);
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printf("\n1-返回菜单；2-退出系统\n");
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scanf("%d",&a);system("cls");//清屏
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if(a==1)
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mai_n();
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else
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exit(0);
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}
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void mai_n()//主菜单
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{
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int n,w=0;
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printf(" ********************************************************************************\n");
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printf(" ** MENU **\n");
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printf(" ********************************************************************************\n");
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printf(" ** * @$ 1- 输 入 课 程 信 息^_^ * **\n");
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printf(" ** * @$ 2- 浏 览 课 程 信 息^_^ * **\n");
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printf(" ** * @$ 3- 查 询 课 程 信 息^_^ * **\n");
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printf(" ** * @$ 4- 统 计 选 课 情 况^_^ * **\n");
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printf(" ** * @$ 5- 进 入 选 课 操 作^_^ * **\n");
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printf(" ** * @$ 0- 退 出 选 课 系 统^_^ * **\n");
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printf(" ********************************************************************************\n");
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printf(" 请选择（1-5）:");
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scanf("%d",&n);
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do
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{
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if(n>5||n<0)
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{
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printf("\n 输入错误！请重新输入！\n");
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scanf("%d",&n);
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}
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else w=1;
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}while(w==0);
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switch(n)
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{
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case 1:insert();break;
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case 2:browser();break;
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case 3:search();break;
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case 4:xuanke_information();break;
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case 5:xuan_ke();break;
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case 0:
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printf("\n^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^ ^_^\n\n 感谢您的使用~~~~~通信工程1803--制作人；石皓华&&王越。"),system("pause"),exit(0);
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}
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}
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int main(void)//登录界面
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{
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int a,b,c=123,d=123;
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printf("请输入本程序防盗安全账号密码登录系统(防盗安全账号、密码为123)；\n"); //虽然没啥用
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printf("账号；");
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scanf("%d",&a);
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printf("\n");
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printf("密码；");
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scanf("%d",&b);
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printf("\n");
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while(a!=c)
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{
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printf("账号错误！请重新输入！\n账号；");
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scanf("%d",&a);
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}
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while(b!=d)
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{
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printf("密码错误！请重新输入！\n密码；");
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scanf("%d",&b) ;
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}
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printf("登录成功^_^\n");
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system("cls");//清屏
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mai_n();//主菜单
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return 0;
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}
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