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#include<stdio.h>
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#include<string.h>
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#include<stdlib.h>
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#include<malloc.h>
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void prin1();
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void choose();
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typedef struct subjects //定义课程信息结构体
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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 stime;//总学时
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int ttime;//授课学时
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int etime;//实验或上机学时
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int score;//学分
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int term;//开课学期
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struct subjects *next;
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} SUB;
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SUB *head=NULL;
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//下面定义链表模块
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SUB *create_form()
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{
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SUB *head,*tail,*p;//定义头节点，尾节点，中间节点。
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int num,stime,ttime;
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int etime,score,term;
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char name[20],kind[10];
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int size=sizeof(SUB);
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head=tail=NULL;
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printf("输入选修课程信息:\n");
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scanf("%d%s%s%d%d%d%d%d",&num,name,kind,&stime,&ttime,&etime,&score,&term);
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while(num!=0)
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{
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p=(SUB *)malloc(size);
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p->num=num;
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strcpy(p->name,name);
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strcpy(p->kind,kind);
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p->stime=stime;
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p->ttime=ttime;
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p->etime=etime;
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p->score=score;
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p->term=term;
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if(head==NULL)
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head=p;
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else
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tail->next=p;
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tail=p;
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scanf("%d%s%s%d%d%d%d%d",&num,name,kind,&stime,&ttime,&etime,&score,&term);
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}
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tail->next=NULL;
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return head;
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}
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//保存文件模块
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void savefile() //保存文件
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{
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SUB *p;
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FILE *fp;fp=fopen("2.txt","w");
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if(fp==NULL)exit(0);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上级学时 学分 开课学期\n");
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for(p=head;p;p=p->next)
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fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term);
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fclose(fp);
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printf("创建后信息已放入'2.txt'文件中\n");
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system("pause");}
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void savefile1()
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{
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SUB *p;
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FILE *fp;fp=fopen("3.txt","w");
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if(fp==NULL)exit(0);
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for(p=head;p;p=p->next)
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fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",p->num,p->name,p->kind,p->stime,p->ttime,p->etime,p->score,p->term);
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fclose(fp);
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printf("创建后信息已放入'3.txt'文件中\n");
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system("pause");
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}
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//读取文件模块
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void readfile()//阅读文件
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{
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void *myInsert(SUB*);
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SUB *newSub;//新课程
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int num,stime,ttime,etime;
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int score,term;
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char c,name[20],kind[10],fname[20];
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FILE *fp;
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fp=fopen("2.txt","r");
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while(!feof(fp))
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{
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newSub=(SUB*)malloc(sizeof(SUB));
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fscanf(fp,"%d%s%s%d%d%d%d%d\n",&newSub->num,newSub->name,newSub->kind,&newSub->stime,&newSub->ttime,&newSub->etime,&newSub->score,&newSub->term);
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myInsert(newSub);
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}
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fclose(fp);
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}
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void read()
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{
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void *myInsert(SUB*);
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SUB *newSub;//新课程
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int num,stime,ttime,etime;
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int score,term;
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char c,name[20],kind[10],fname[20];
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FILE *fp;
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fp=fopen("3.txt","r");
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while(!feof(fp))
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{
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newSub=(SUB*)malloc(sizeof(SUB));
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fscanf(fp,"%d%s%s%d%d%d%d%d\n",&newSub->num,newSub->name,newSub->kind,&newSub->stime,&newSub->ttime,&newSub->etime,&newSub->score,&newSub->term);
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myInsert(newSub);
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}
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fclose(fp);
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}
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//下面定义浏览模块
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void prin()
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{
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SUB *ptr;
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head=NULL;
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readfile();
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if(head==NULL)
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{
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printf("\n\n\t**********NO RECORDS!**********\n");
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return;
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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 实践或上级学时 学分 开课学期\n");
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for(ptr=head;ptr;ptr=ptr->next)
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{
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);
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}
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system("pause");
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}
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//下面定义浏览已选修课程模块
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void prin1()
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{
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SUB *ptr;
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head=NULL;
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read();
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if(head==NULL)
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{
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printf("\n\n\t**********NO RECORDS!**********\n");
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return;
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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 实践或上级学时 学分 开课学期\n");
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for(ptr=head;ptr;ptr=ptr->next)
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{
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);
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}
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system("pause");
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}
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//插入链表模块
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void *myInsert(SUB *subj)//链表插入操作
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{
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SUB *ptr,*ptr2;
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ptr=subj;
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if(head==NULL)
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{
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head=ptr;
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head->next=NULL;
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}
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else
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{
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for(ptr2=head;ptr2;ptr2=ptr2->next)
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if(ptr2->next==NULL)
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{
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ptr2->next=subj;
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subj->next=NULL;
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break;
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}
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}
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return head;
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}
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//添加模块
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void *insert()
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{
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SUB *ptr,*subj;
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int size=sizeof(SUB);
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char ch,ch1;
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while(ch!='0')
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{
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subj=(SUB *)malloc(size);
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ptr=subj;
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printf("请输入要插入的课程信息:\n");
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printf("\n\t\t 请输入课程编号:");
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scanf("%d",&subj->num);
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printf("\n\t\t 请输入课程名称:");
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scanf("%s",&subj->name);
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printf("\n\t\t 请输入课程性质:");
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scanf("%s",&subj->kind);
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printf("\n\t\t 请输入总学时:");
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scanf("%d",&subj->stime);
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printf("\n\t\t 请输入授课学时:");
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scanf("%d",&subj->ttime);
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printf("\n\t\t 请输入实践或上机学时:");
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scanf("%d",&subj->etime);
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printf("\n\t\t 请输入学分:");
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scanf("%d",&subj->score);
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printf("\n\t\t 请输入开课学期:");
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scanf("%d",&subj->term);
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myInsert(subj);
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printf("\n添加完毕，新信息存入文件夹\n");
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printf("\n\n 继续插入请按回车\n");
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printf("\n结束添加请按 0:[ ]\b\b");
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ch1=getchar();
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ch=getchar();
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}
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return head;
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}
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//删除模块
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void *del()
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{
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SUB *p1,*p2;
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char ch,ch1;
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int num;
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while(ch!='0')
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{
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printf("请输入想删除的课程编号:[ ]\b\b\b\b");
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scanf("%d",&num);
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if(head->num==num);
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{
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p2=head;
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head=head->next;
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free(p2);
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}
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if(head==NULL)
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return NULL;
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p1=head;
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p2=head->next;
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while(p2)
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{
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if(p2->num==num)
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{
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p1->next=p2->next;
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free(p2);
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}
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else
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p1=p2;
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p2=p1->next;
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}
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printf("\n继续删除按回车\n");
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printf("\n结束删除按 0:[]\b\b");
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ch1=getchar();
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ch=getchar();
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}
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return head;
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system("pause");
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}
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//选修课程模块
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void choose()
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{
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SUB *p,*q;
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int a[5];
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int num,total=0,i=0,j;
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printf("输入想要选修的课程编号,编号之间用空格分开\n");
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scanf("%d",&num);
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printf("如果确认输入完要选的编号，请输入 0:[]\n\n");
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while(num!=0)
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{
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for(p=head;p;p=p->next)
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if(p->num==num)
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{
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total=total+p->score;
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a[i]=num;
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i++;
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}
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scanf("%d",&num);
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}
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if(total<60)
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{
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printf("选修总学分为%d,未达到60，选修失败！",total);
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system("pause");
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}
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else
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{
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FILE*fp;
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fp=fopen("3.txt","w");
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for(j=0;j<i;j++)
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for(q=head;q;q=q->next)
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if(q->num==a[j])
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fprintf(fp,"%5d%12s%9s%9d%9d%11d%11d%7d\n",q->num,q->name,q->kind,q->stime,q->ttime,q->etime,q->score,q->term);
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fclose(fp);
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printf("\t\t\n*****选修成功！*******\n");
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printf("\n 您选修的课程总学分为%d,课程分别为:\n",total);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上级学时 学分 开课学期\n");
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for(j=0;j<i;j++)
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for(q=head;q;q=q->next)
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if(q->num==a[j])
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",q->num,q->name,q->kind,q->stime,q->ttime,q->etime,q->score,q->term);
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printf("\n以上信息全部保存在'3.txt'中\n");
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}
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system("pause");
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}
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//下面定义查询板块
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void search()
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{
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int a,num;
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int t=1;
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char type[10],min[10];
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SUB *ptr;
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L1:system("cls");
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printf("\n\n\t\t***********请选择查询方式***********\n");
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printf("\n\t\t\t1--按课程名称查找\n");
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printf("\n\t\t\t2--按课程性质查找\n");
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printf("\n\t\t\t3--按学分查找\n");
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printf("\n\t\t\t4-退出查找\n");
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printf("\n\n\t\t************************************\n");
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printf("\n\nChoose your numeber(1-4):[]\b\b");
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scanf("%d",&a);
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switch(a)
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{
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case 1:printf("输入查找课程名:");
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scanf("%s",min);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学时\n");
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for(ptr=head;ptr;ptr=ptr->next)
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if(strcmp(min,ptr->name)==0)
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{
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);
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t=0;
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}
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if(t)
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printf("\t\n 未找到！\n");
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t=1;
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system("pause");
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goto L1;
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case 2:printf("请输入查找课程性质:");
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scanf("%s",type);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学时\n");
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for(ptr=head;ptr;ptr=ptr->next)
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if(strcmp(type,ptr->kind)==0)
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{
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);
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t=0;
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}
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if(t)
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printf("\t\n 未找到！\n");
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t=1;
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system("pause");
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goto L1;
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case 3:printf("输入要查找的课程的学分:");
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scanf("%d",&num);
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printf("课程编号 课程名称 课程性质 总学时 授课学时 实践或上机学时 学分 开课学时\n");
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for(ptr=head;ptr;ptr=ptr->next)
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if(ptr->score==num)
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{
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printf("%5d%12s%9s%9d%9d%11d%11d%7d\n",ptr->num,ptr->name,ptr->kind,ptr->stime,ptr->ttime,ptr->etime,ptr->score,ptr->term);
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t=0;
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}
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if(t)
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printf("\n\t未找到！\n");
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t=1;
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system("pause");
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goto L1;
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case 4:break;
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}
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}
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//下面定义管理员板块
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void Mangers()
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{
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int n,w=1,flag=0,i=3;
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char s[8];
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char password[7]="1";//密码为1
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do
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{
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printf("\n\nEnter password:");//输入密码
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scanf("%s",s);
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if(!strcmp(s,password))//密码匹配验证
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{
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flag=1;
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break;//输入正确
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}
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else
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{
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printf("\n\nError!You only have %d times!Pleasa enter again:\n",i-1);
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i--;
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}
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}
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while(i>0);
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if(!flag)
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{
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printf("you have already entered 3 times!");//输入密码超过3次，退出
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exit(0);
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}
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do
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{
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system("cls");//清屏
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puts("\n\n\t\t*************管 理 员 菜 单**************\n\n");
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puts("\t\t\t\t1--浏览课程\n");
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puts("\t\t\t\t2--查询课程\n");
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puts("\t\t\t\t3--添加课程\n");
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puts("\t\t\t\t4--删除课程\n");
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puts("\t\t\t\t5--返回主菜单");
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puts("\n\n\t\t******************************************\n");
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printf("choose your number(1-5):[]\b\b");
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scanf("%d",&n);
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switch(n)
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{
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case 1:prin();break;//浏览
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case 2:search();break;//查询
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case 3:insert();savefile();break;//添加
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case 4:del();savefile();break;//删除
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case 5:return;
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default:;
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}
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}while(w==1);
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}
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//下面定义学生板块
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void Students()
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{
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int n,w=1;
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do
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{
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system("cls");
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puts("\n\n\t\t**********************************\n\n");
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puts("\t\t\t\t1--浏览所有课程\n");
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puts("\t\t\t\t2--查询课程信息\n");
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puts("\t\t\t\t3--选择选修课程\n");
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puts("\t\t\t\t4--浏览我选修的课程\n");
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puts("\t\t\t\t5--删除错选课程\n");
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puts("\t\t\t\t6--返回");
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puts("\n\n\t\t****************************************\n");
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printf("choose your number(1-6):[]\b\b");
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scanf("%d",&n);
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switch(n)
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{
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case 1:prin();break;//浏览
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case 2:search();break;//查询
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case 3:choose();break;//选择
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case 4:prin1();break;//浏览我选修的
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case 5:del();savefile();break;//删除错选
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case 6:return;//返回
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default:;
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}
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}
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while(w==1);
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}
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//下面编辑主页面
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int main()
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{
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int n,w=1;
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do
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{
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system("cls");//清除屏幕
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puts("\n\n\t\t****************MENU****************\n\n");
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puts("\t\t\t\t1.以管理员身份登录\n");
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puts("\t\t\t\t2.以学生身份登录\n");
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puts("\t\t\t\t3.退出");
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puts("\n\n\t\t***********************************\n");
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printf("Choose your number(1--3):[ ]\b\b");
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scanf("%d",&n);
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switch(n)
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{
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case 1:Mangers();break;//选1，进入管理员系统
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case 2:Students();break;//选2，进入学生系统
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case 3:w=0;break;//选3，退出
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default:;
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}
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}
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while(w==1);
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return 0;
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}
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