commit
fa08151c4a
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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
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{
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char name[100];
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char kind[30];
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int num;
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int time;
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int ttime;
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int etime;
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int mark;
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int term;
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};
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struct student
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{
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char snum[11];
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int cnum;
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char cname[100];
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};
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void insert() /*输入信息*/
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{ int main();
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FILE *fp;
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struct course c;
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int secret=112112;
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int secret1;
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int n;
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system("cls");
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if((fp=fopen("course.txt","a+"))==NULL)
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{printf("cannot open course\n");}
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printf("请输入密码：");
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scanf("%d",&secret1);
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if(secret1==secret)
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{
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printf("密码输入正确，请输入课程门数：");
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scanf("%d",&n);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实验学时 学分 开课学期：\n");
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for(int i=1;i<=n;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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}
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else
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printf("你输入的密码有误，请重试");
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fclose(fp);
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main();
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}
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void browser() /*信息浏览*/
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{ int main();
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FILE *fp;
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struct course c;
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system("cls");
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if((fp=fopen("course.txt","r"))==NULL)
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{printf("cannot open course\n");}
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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",&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%7d%7d\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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main();
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}
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void search() /*信息查询*/
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{ int main();
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FILE *fp;
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struct course c;
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int score,b;
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system("cls");
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loop:
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printf("1.按学分查询 2.按课程性质查询\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("请输入您要查询的学分:");
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scanf("%d",&score);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("cannot open course!\n");
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}
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else
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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",&c.num,&c.name,&c.kind,&c.time,&c.ttime,&c.etime,&c.mark,&c.term);
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if(score==c.mark)
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printf("%5d%12s%9s%9d%9d%11d%7d%7d\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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{
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char kind1[10];
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system("cls");
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printf("请输入您要查询的课程性质:");
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scanf("%s",&kind1);
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if((fp=fopen("course.txt","r"))==NULL)
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{
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printf("cannot open course!\n");
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}
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else
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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,kind1)==0)
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printf("%5d%12s%9s%9d%9d%11d%10d%10d\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("输入有误\n"); goto loop;}
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fclose(fp);
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main();
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}
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void xuankeinformation() /*学生选课情况*/
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{ int main();
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FILE *fp;
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struct student s;
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system("cls");
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if((fp=fopen("student.txt","r"))==NULL)
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{
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printf("cannot open course!\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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{
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fscanf(fp,"%s %d %s",&s.snum,&s.cnum,&s.cname);
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printf("%7s %5d %17s\n",s.snum,s.cnum,s.cname);
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}
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fclose(fp);
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main();
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}
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void xuanke() /*学生进行选课*/
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{
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int main();
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FILE *fp;
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struct student s;
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struct course c;
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system("cls");
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printf("请输入你的学号以及想选的课程的编号\n");
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scanf("%s %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("cannot 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(c.num==s.cnum)
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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("cannot open student!\n");
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}
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fprintf(fp,"%s %d %s\n",s.snum,s.cnum,c.name);
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fclose(fp);
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main();
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}
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int main()
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{
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loop:
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printf("\n\n");
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printf(" 学生选修课程系统 \n\n\n");
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printf(" ******** 1.课程信息录入 ******** \n");
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printf(" ******** 2.课程信息浏览 ******** \n");
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printf(" ******** 3.课程信息查询 ******** \n");
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printf(" ******** 4.学生选修课程统计 ******** \n");
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printf(" ******** 5.选课 ******** \n");
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printf(" ******** 0.退出 ******** \n");
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printf("请输入你想选择的数字\n");
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int x;
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scanf("%d",&x);
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switch(x)
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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:xuankeinformation(); break;
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case 5:xuanke(); break;
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case 0:exit(0);break;
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default:printf("你的选择有错误！"); goto loop;
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}
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return 0;
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}
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