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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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