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85 lines
2.6 KiB
85 lines
2.6 KiB
void c_searchs()
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{
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void stu_login();
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void c_searchs();
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int id,i=0,j,inp,k;
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int flag=0;
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FILE *fp;
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struct course coursesear[10];
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if ((fp=fopen("course.dat","rb"))==NULL) //判断课程信息是否存在
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{
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system("cls");
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printf("\n\n\t课程不存在\t按任意键返回");
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getchar();getchar();
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stu_login();
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}
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else//存在的话循环读取文件中的信息直到文件指针到文件尾部
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{
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do
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{
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fread(&coursesear[i],sizeof(struct course),1,fp);
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i=i+1;
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}while(!feof(fp));
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fclose(fp);
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}
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system("cls");
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printf("\n\n\t\t\t请输入你要查询的课程编号：");
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scanf("%d",&id);
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do//检查输入是否符合要求
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{
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for(j=0;j<i-1;j++)
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{
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if(id==coursesear[j].c_num)
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{
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flag++;
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k=j;
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}
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}
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if(flag==1)
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{
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system("cls");
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printf("\n\n\t课程编号:%d\n",coursesear[k].c_num);
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printf("\n\n\t课程名字:%s\n",coursesear[k].c_name);
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printf("\n\n\t课程学分:%d\n",coursesear[k].c_score);
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printf("\n\n\t课程已选人数:%d\n",coursesear[k].c_nelepeo);
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printf("\n\n\t课程人数上限:%d\n",coursesear[k].c_melepeo);
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getchar();getchar();
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printf("\n\n\t1.回目录继续查询\t2.退出查询系统\n");
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printf("请选择：");
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scanf("%d",&inp);
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switch(inp)
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{
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case 1:c_searchs();
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case 2:stu_login();
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default:
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{
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printf("\n\t没有这项服务\t请按任意键重新输入");
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getchar();getchar();
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}
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}
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}
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else
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{
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system("cls");
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printf("\n\n\t不存在对应记录\n");
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printf("\n\n\t1.回目录继续查询\t2.退出查询系统\n");
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printf("请选择：");
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scanf("%d",&inp);
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switch(inp)
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{
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case 1:c_searchs();
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case 2:stu_login();
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default:
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{
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printf("\n\t没有这项服务\t请按任意键重新输入");
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getchar();getchar();
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}
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}
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}
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}while(inp!=1);
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}
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