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#include"stdio.h"
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#include"stdlib.h"//定义内存分配函数
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#include"windows.h"
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#include"string.h"
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#include"student.h"
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void sy();//首页
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void dljm();
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void tcjm();//退出界面
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void xsdlcd();//学生登录菜单
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void xk();
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void kcll();//课程浏览
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void add();//增加课程
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void xscx();//学生查询函数
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void xsll();//学生浏览函数
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void sy()//首页
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{
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char input;
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printf("\n\n\t\t\t****************************\n");
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printf("\t\t\t 湖南工业大学选课系统 \n");
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printf("\t\t\t****************************\n\n\n");
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printf("\t\t\t****************************\n\n\n");
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printf("\t\t\t****************************\n\n\n");
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printf("\t\t\t****************************\n\n\n");
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printf("\t\t\t******设计者；王功、尚磊****\n\n\n");
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input=getchar();
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system("cls");//清屏
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}
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void dljm()//登陆界面
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{
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void xsdlcd();
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void tcjm();
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int input;
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do
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{
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system("cls");
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printf("\n\n\n\t1.进入本系统\n");
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printf("\t2.退出本系统\n");
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printf("\t请选择服务类别:");
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scanf("%d",&input);
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if (input!=1&&input!=2) //输入数不等于选项的时候打印画面
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{
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printf("\n\t输入出错!请重新选择~\n");
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printf("\n\t按任意键返回选择页面~\n\t");
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getchar();getchar();
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system("cls");
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}
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if(input==2)//如果输入2退出系统
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{
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tcjm();
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}
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}while(input!=1&&input!=2);
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switch(input)
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{
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case 1:xsdlcd();break;
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}
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}
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void tcjm()//退出界面
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{
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exit(0);//正常运行程序并退出程序
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}
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void xsdlcd()//学生登录菜单
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{
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void xk();
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void kcll();
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void xscs();
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void dljm();
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void add();
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int input;
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do
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{
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system("cls");
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printf("\n\n\n\t--系统功能--");
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printf("\n\n\t1.学生选课\n");
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printf("\t2.课程浏览\n");
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printf("\t3.课程查询\n");
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printf("\t4.增加课程\n");
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printf("\t5.退出\n");
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scanf("%d",&input);
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if(input!=1&&input!=2&&input!=3&&input!=4&&input!=5)
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{
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printf("\n\t没有这项服务~\n");
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printf("\t按任意键重新选择");
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getchar();
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getchar();
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}
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}while(input!=1&&input!=2&&input!=3&&input!=4&&input!=5);
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switch(input)
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{
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case 1:xk();break;
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case 2:xsll();break;
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case 3:xscx();break;
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case 4:add();break;
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case 5:dljm();break;
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}
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}
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void xk()
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{
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int n,in,i=0,j;int flag=0;
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FILE *fp;
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FILE *fp1;
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char input;
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struct course courses[10];
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if((fp=fopen("course.dat","rb"))==NULL) //判断是否存在课程
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{
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printf("\n\n\n\t课程不存在\n\n");
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printf("\t<按任意键返回管理菜单>\n\t");
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input=getchar();
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input=getchar();
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xsdlcd();//进入学生登陆菜单
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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(&courses[i],sizeof(struct course),1,fp);//读取课程元素个数
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i=i+1;
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}
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while(!feof(fp));//文件读取到尾部
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fclose(fp);//文件读完后关闭
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}
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printf("\n\n\t\t请输入你要选课程的编号：");
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scanf("%d",&n);
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if((fp1=fopen("courseselect.dat","rb"))==NULL)
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{
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fp1=fopen("courseselect.dat","wb");
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}
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else
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{
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fclose(fp1);
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fp1=fopen("courseselect.dat","ab");
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}
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for(j=0;j<i;j++)
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if(courses[j].bh==n)
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flag++;
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if(flag==0)
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{
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printf("\n\n\t\t不存在对应课程\n");
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printf("\n\n\t\t继续选课请按1，退出请按2:\n");
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scanf("%d",&in);
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switch(in)
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{
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case 1:xk();break;
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case 2:xsdlcd();break;
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default:
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printf("输入错误，将返回登录界面！\n");
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dljm();break;
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}
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}
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else
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{
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fwrite(&courses[j],sizeof(struct course),1,fp1);
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fclose(fp1);
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printf("\n\n\t\t选课成功\t请选择：");
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printf("\n\n\t\t1.继续选课");
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printf("\n\n\t\t2.退出，返回登录界面！");
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scanf("%d",&in);
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switch(in)
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{
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case 1:xk();break;
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case 2:xsdlcd();break;
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default:break;
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}
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}
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}
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void xsll()//课程浏览
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{
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void xsdlcd();
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void kcll() ;
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int inp,i=0,n=0;
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FILE *fp;
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char input;
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struct course courseview[10];
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if((fp=fopen("course.dat","rb"))==NULL) //判断是否存在课程
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{
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system("cls");
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printf("\n\n\n\t课程不存在\n\n");
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printf("\t<按任意键返回管理菜单>\n\t");
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getchar();getchar();
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xsdlcd();//进入学生登陆菜单
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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(&courseview[i],sizeof(struct course),1,fp);
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i=i+1;
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}
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while(!feof(fp));
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fclose(fp);//文件读完后关闭
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do
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{
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system("cls");
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if(i==1)
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{
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printf("\n\n\n\t\t\t没有记录！\n");
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getchar();getchar();
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xsdlcd();
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}
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else
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{
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printf("\n\t------共有%d条记录-------",i-1);
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printf("\n\n\t课程编号： %d\n",courseview[n].bh);
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printf("\n\n\t课程名字： %s\n",courseview[n].mc);
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printf("\n\n\t课程学分： %d\n",courseview[n].xf);
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printf("\n\n\t课程已选人数： %d\n",courseview[n].alreadypp);
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printf("\n\n\t课程人数上限： %d\n",courseview[n].maxpp);
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printf("\n\n\t1.上一页\t2.下一页\t3.回目录");
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printf("\n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:
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{
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if(n==0)
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{
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printf("\n\t已到达首页 \t按任意键返回");
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input=getchar();
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input=getchar();
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}
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else
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{
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n=n-1;
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}
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break;
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}
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case 2:
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{
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if(n==i-2)
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{
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printf("\n\t已到达尾页\t按任意键返回");
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input=getchar();
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input=getchar();
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}
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else
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{
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n=n+1;
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}
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break;
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}
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case 3:{xsdlcd();break;}
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default:
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{
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printf("\n\t操作错误\t按任意键返回");
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getchar();getchar();
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break;
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}
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}
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}
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}while(inp!=3);
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}
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}
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void xscx()
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{
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void xsdlcd();
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void xscx();
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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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xsdlcd();
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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].bh)
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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].bh);
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printf("\n\n\t课程名字:%s\n",coursesear[k].mc);
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printf("\n\n\t课程学分:%d\n",coursesear[k].xf);
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printf("\n\n\t课程已选人数:%d\n",coursesear[k].alreadypp);
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printf("\n\n\t课程人数上限:%d\n",coursesear[k].maxpp);
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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:xscx();
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case 2:xsdlcd();
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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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|
|
|
case 1:xscx();
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|
|
case 2:xsdlcd();
|
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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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|
|
void add()//增加课程
|
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|
|
|
{
|
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|
void add();
|
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|
|
int i=0,j,inp;
|
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|
|
|
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|
|
FILE *fp;
|
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|
|
struct course course_new;
|
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|
|
struct course courses[10];
|
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|
|
|
|
|
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|
|
system("cls");
|
|
|
|
|
printf("\n\n\t\t请输入课程信息");
|
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|
|
printf("\n\n\t\t1.课程编号:");
|
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|
|
scanf("%d",&course_new.bh);
|
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|
|
printf("\n\n\t\t2.课程名字:");
|
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|
|
scanf("%s",course_new.mc);
|
|
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|
|
printf("\n\n\t\t3.课程学分:");
|
|
|
|
|
scanf("%d",&course_new.xf);
|
|
|
|
|
printf("\n\n\t\t4.课程已选人数:");
|
|
|
|
|
scanf("%d",&course_new.alreadypp);
|
|
|
|
|
printf("\n\n\t\t5.课程人数上限:");
|
|
|
|
|
scanf("%d",&course_new.maxpp);
|
|
|
|
|
|
|
|
|
|
if((fp=fopen("course.dat","rb"))!=NULL)
|
|
|
|
|
{
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
fread(&courses[i],sizeof(struct course),1,fp);
|
|
|
|
|
i=i+1;
|
|
|
|
|
}while(!feof(fp));
|
|
|
|
|
|
|
|
|
|
fclose(fp);
|
|
|
|
|
|
|
|
|
|
for(j=0;j<=i-1;j++)
|
|
|
|
|
if(course_new.bh==courses[j].bh)
|
|
|
|
|
{
|
|
|
|
|
system("cls");
|
|
|
|
|
printf("\n\n\t\t\t对不起，这个编号已经使用过\n\n\t\t按任意键返回管理菜单");
|
|
|
|
|
getchar();getchar();
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if((fp=fopen("course.dat","rb"))==NULL)
|
|
|
|
|
{
|
|
|
|
|
fp=fopen("course.dat","wb");
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
fclose(fp);
|
|
|
|
|
fp=fopen("course.dat","ab");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
fwrite(&course_new,sizeof(struct course),1,fp);
|
|
|
|
|
fclose(fp);
|
|
|
|
|
|
|
|
|
|
printf("\n\n\t\t信息输入完毕\t按任意键继续");
|
|
|
|
|
getchar();getchar();
|
|
|
|
|
|
|
|
|
|
do
|
|
|
|
|
{
|
|
|
|
|
system("cls");
|
|
|
|
|
printf("\n\n\t\t1.继续输入");
|
|
|
|
|
printf("\n\n\t\t2.返回管理菜单");
|
|
|
|
|
printf("\n\n\t\t请选择");
|
|
|
|
|
scanf("%d",&inp);
|
|
|
|
|
if(inp!=1&&inp!=2)
|
|
|
|
|
{
|
|
|
|
|
printf("输入不符合要求\t按任意键重新选择");
|
|
|
|
|
getchar();getchar();
|
|
|
|
|
}
|
|
|
|
|
}while(inp!=1&&inp!=2);
|
|
|
|
|
|
|
|
|
|
switch(inp)
|
|
|
|
|
{
|
|
|
|
|
case 1:add();break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
int main()
|
|
|
|
|
{
|
|
|
|
|
sy();
|
|
|
|
|
dljm();
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
nishisb
7 years ago