链表操作（北信科）.doc

#include<>#include<>#include<>#include<>#include<>#defineLENsizeof(structstudent)typedefstructstudent{longnumb;charname[10];intscore[3];floatave;structstudent*next;}STU;STU*creatbyone();voidprint(STU*head);STU*findBynumb(STU*head,longnum);STU*del(STU*head);STU*insert(STU*head);voidfind(STU*head);voidsort(STU*head,intn);voidupdate(STU*head);voidsave(STU*head);STU*load(STU*head);intn;voidmain(){STU*head;intchoise;for(;;){system("cls");printf("菜单栏\n");printf("欢迎使用成绩管理系统\n");printf("\n");printf("[1]输入成绩||[5]查找成绩信息\n");printf("\n");printf("[2]显示全部成绩||[6]更改成绩信息\n");printf("\n");printf("[3]新增成绩||[7]保存信息\n");printf("\n");printf("[4]删除成绩||[8]加载成绩信息\n");printf("\n");printf("[0]退出\n");printf("\n");printf("\n");printf("请选择功能(0~8):");scanf("%d",&choise);if(choise==0)break;switch(choise){case1:head=creatbyone();break;case2:print(head);break;case3:head=insert(head);break;case4:head=del(head);break;case5:find(head);break;case6:update(head);break;case7:save(head);break;case8:head=load(load);break;}}printf("谢谢使用!!\n");}voidfind(head){STU*p;intnum;printf("请输入要查找的学号:");scanf("%d",&num);p=findBynumb(head,num);if(p==NULL)printf("没有找到");else{printf("找到了\n");printf("学号\t姓名\t成绩1\t成绩2\t成绩3\t平均分\n");printf("%ld\t%s\t%d\t%d\t%d\t%.2f\n",p->numb,p->name,p->score[0],p->score[1],p->score[2],p->ave);}printf("按任意键继续......");getch();}STU*creatbyone()//创建信息{STU*head,*pnew,*