C语言课设学生信息管理系统

1、开始流程图:非法选项9.调用ha函数馆&调用Sa函数rt7.调用SOW&调用5.调用hrc§)i数yImo函数4.调用ad函数e3.调用de心1.调用PI引函数同ere函数结束全局变量structstudcharname20;longnum;intage;charsex;intscore3;chartele12;structstud*next;子程序1 .creat()函数y 继续，输入 n 停功能：创建链表，提示输入学生信息，储存到链表中，录入完成后输入止，返回主菜单2 .display()函数功能：显示当前已经存入链表的信息3 .dele()函数功能：删除链表中学

2、生信息，可按姓名或学号删除4 .add()函数功能：按学号插入学生信息5 .modify()函数功能：修改链表中学生信息6 .search()函数功能：查找学生信息，可按学号或姓名查找7.sort()函数功能：对信息进行排序，可实现分别对三门成绩排序8.save()函数功能：将链表中的数据保存到指定文件9.load()函数功能：将指定文件中已有的数据读入链表源程序#include<stdio.h>#include<string.h>#include<stdlib.h>#include<conio.h>structstudcharname20;lo

3、ngnum;intage;charsex;intscore3;chartele12;structstud*next;main()structstud*head;structstud*creat(void);voiddisplay(structstud*head);structstud*dele(structstud*head);structstud*add(structstud*head);structstud*modify(structstud*head);voidsearch(structstud*head);voidsave(structstud*head);structstud*sor

4、t(structstud*head);voidsave(structstud*head);structstud*load();charch;head=NULL;for(;)clrscr();/*清屏函数*/printf( printf(nnttWelcometostudentinformationmanagementnnt*printf(nttt1:Enter the information ”);printf(nttt2:List the information ”);printf(nttt3:Delete the information ”);printf(nttt4:Add the in

5、formation ”);printf(nttt5:Modify the information ”);printf(nttt6:Search the information ”);printf(nttt7:Sort the information ”);printf(nttt8:Save the information ”);printf(nttt9:Load the information ”);printf(nttt0:Exit “);printf(ntttEnter your choice: ”);system” );”);fflush(stdin);ch=getchar();getc

6、har();switch(ch)case1:head=creat();break;case2:display(head);system(“pause”);break;case3:head=dele(head);system(“pause”);break;case4:head=add(head);system(“pause”);break;case5:head=modify(head);system(“pause”);break;case6:search(head);system(“pause”);break;case7:head=sort(head);system(“pause”);break

7、;case8:save(head);system(“pause”);break;case9:head=load();break;case0:return;break;default:clrscr();printf(“ntError!Pleasecheckyourinputnn”);system(“pause”);structstud*creat(void)/*链表的创建*/structstud*head,*p1;charch;clrscr();head=NULL;p1=(structstud*)malloc(sizeof(structstud);printf(“tentername:”);ge

8、ts(p1->name);printf(“tenternumber:”);scanf(“%ld”,&p1->num);printf(“tenterage:”);scanf(“%d”,&p1->age);printf(“tentersex:”);fflush(stdin);scanf(“%c”,&p1->sex);printf(“tenterMathscore:”);scanf(“%d”,&p1->score0);printf(“tenterEnglishscore:”);scanf(“%d”,&p1->score1);

9、printf(“tenterCscore:”);scanf(“%d”,&p1->score2);printf(“tentertelephonenumber:”);fflush(stdin);gets(p1->tele);head=p1;p1->next=NULL;doprintf(“ntDOYOUWANTTOCONTINUE?YorN?”);printf(“ntEnteryourchoise:”);fflush(stdin);ch=getchar();clrscr();if(ch=y|ch=Y)head=add(head);elseif(ch!=N&&

10、ch!=n)printf(“ntError!Pleasecheckyourinput”);ch=y;链表的删除*/while(ch=y|ch=Y);return(head);structstud*dele(structstud*head)/*structstud*p1,*p2;intchoose;longdelnum;charname20;clrscr();printf(“nttChoosethewayyouwantprintf(“nt1:Accordingtonamenprintf(“nt2:Accordingtonumnprintf(“ntEnteryourchoice:scanf(“%d

11、”,&choose);fflush(stdin);if(choose=1)printf(“ntEnterthename:”);gets(name);if(head=NULL)printf(););););tnNoinformation!n”);return(head);p1=head;while(strcmp(name,p1->name)!=0&&p1->next!=NULL)p2=p1;p1=p1->next;if(strcmp(name,p1->name)=0)if(p1=head)head=p1->next;elsep2->ne

12、xt=p1->next;printf(“tDeleteSuccessed!nn”);elseprintf(“tNotbeenfind!nn”);return(head);elseif(choose=2)printf(“ntEnterthenumber:”);scanf(“%ld”,&delnum);if(head=NULL)printf(“nNoinformation!n”);return(head);p1=head;while(delnum!=p1->num&&p1->next!=NULL)p2=p1;p1=p1->next;if(delnum

13、=p1->num)if(p1=head)head=p1->next;elsep2->next=p1->next;printf(“tDeleteSuccessed!nn”);elseprintf(“tNotbeenfind!n”);return(head);elseprintf(“ntError!Pleasecheckyourinputnn”);return(head);voiddisplay(structstud*head)structstud*p;p=head;clrscr();if(head=NULL)printf(“ntNoinformationnn”);else

14、printf(“nametnumbertagetsextMathtEnglishtCttelephonenumbern”);doprintf(“%st%ldt%dt%ct%dt%dt%dt%sn”,p->name,p->num,p->age,p->sex,p->score0,p->score1,p->score2,p->tele);p=p->next;while(p!=NULL);structstud*add(structstud*head)/*链表的插入*/structstud*p1,*p2,*p0;p0=(structstud*)mal

15、loc(sizeof(structstud);clrscr();printf(“nttInputtheinformation:”);printf(“nttname:”);fflush(stdin);gets(p0->name);printf(“ttnumber:”);scanf(“%ld”,&p0->num);printf(“tt”age:”);scanf(“%d”,&p0->age);printf(“ttsex:”);fflush(stdin);scanf(“%c”,&p0->sex);printf(“ttMathscore:”);scanf(

16、“%d”,&p0->score0);printf(“ttEnglishscore:”);scanf(“%d”,&p0->score1);printf(“ttCscore:”);scanf(“%d”,&p0->score2);printf(“tttelephonenumber:”fflush(stdin);gets(p0->tele);p1=head;if(head=NULL)head=p0;p0->next=NULL;elsewhile(p0->num>p1->num)p2=p1,p1=p1->next;if(p0-

17、>num<=p1->num)if(head=p1)head=p0;elsep2->next=p0;p0->next=p1;elsep1->next=p0;p0->next=NULL;return(head);structstud*modify(structstud*head)/*链表的修改*/structstud*p1,*p2,*p0;clrscr();printf(“ntInputthestudentsname:”);p0=(structstud*)malloc(sizeof(structstud);fflush(stdin);gets(p0->

18、;name);if(head=NULL)printf(“nNoinformation!nn”);return(head);p1=head;while(strcmp(p0->name,p1->name)!=0&&p1->next!=NULL)p2=p1;p1=p1->next;if(strcmp(p0->name,p1->name)=0);printf(“nametnumbertagetsextMathtEnglishtCttelephonenumbernprintf( “%st%ldt%dt%ct%dt%dt%dt%sn,p1->nam

19、e,p1->num,p1->age,p1->sex,p1->score0,p1->score1,p1->score2,p1->tele);if(p1=head)head=p1->next;elsep2->next=p1->next;printf(“tNewinformation:number:”);scanf(“%ld”,&p0->num);printf(“tttage:”);scanf(“%d”,&p0->age);printf(“tttsex:”);fflush(stdin);scanf(“%c”,&a

20、mp;p0->sex);printf(“tttMathscore:”);scanf(“%d”,&p1->score0);printf(“tttEnglishscore:”);scanf(“%d”,&p1->score1);printf(“tttCscore:”);scanf(“%d”,&p1->score2);printf(“ttttelephonenumber:”);fflush(stdin);gets(p0->tele);p1=head;if(head=NULL)head=p0;p0->next=NULL;elsewhile(p0

21、->num>p1->num)p2=p1;p1=p1->next;if(p0->num<=p1->num)if(head=p1)head=p0;elsep2->next=p0;p0->next=p1;elsep1->next=p0;p0->next=NULL;printf(“ModifySuccessed!nn”);elseprintf(“Notbeenfind!nn”);return(head);voidsearch(structstud*head)/*查询链表*/structstud*p;intchoose;longnum;c

22、harname20;clrscr();printf(“nttChoosethewayyouwant”);printf(“nt1:Accordingtonamen“);printf(“nt2:Accordingtonumn”);printf(“ntEnteryourchoice:”);scanf(“%d”,&choose);fflush(stdin);if(choose=1)printf(“ntenterthename:”);gets(name);if(head=NULL)printf(“tnNoinformation!nn”);elsep=head;while(strcmp(name,

23、p->name)!=0&&p->next!=NULL)p=p->next;if(strcmp(name,p->name)=0)printf(“nametnumbertagetsextMathtEnglishtCttelephonenumbern”);printf(“%st%ldt%dt%ct%dt%dt%dt%sn”,p->name,p->num,p->age,p->sex,p->score0,p->score1,p->score2,p->tele);elseprintf(“Notbeenfind!nn”)

24、;elseif(choose=2)printf(“ntEnterthenumber:”);scanf(“%ld”,&num);if(head=NULL)printf(“nNoinformation!n”);elsep=head;while(num!=p->num&&p->next!=NULL)p=p->next;if(num=p->num)printf(“nametnumbertagetsextMathtEnglishtCttelephonenumbern”);printf(“%st%ldt%dt%ct%dt%dt%dt%sn”,p->na

25、me,p->num,p->age,p->sex,p->score0,p->score1,p->score2,p->tele);elseprintf(“tNotbeenfind!n”);elseprintf(“ntError!Pleasecheckyourinputnn”);structstud*sort(structstud*head)structstud*first;structstud*t;structstud*p;structstud*q;int ch; clrscr(); printf( printf( printf( printf( prin

26、tf( scanf(nttChoose the way you wantntntntnt1: According to Math:n2: According to Englishn3: According to Cn Enter your choice:%d” ,&ch);););” ););” );first = head->next;head->next = NULL;while (first != NULL)for (t=first, q=head; (q!=NULL) && q=q->next);(q->scorech-1>t-&g

27、t;scorech-1);p=q,first = first->next;if (q = head)head=t;elsep->next=t;t->next=q;printf(“nttSuccess!n”);returnhead;voidsave(structstud*head)/*保存链表*/FILE*fp;structstud*p;charfilename20;printf(“nninputthefilename:“);fflush(stdin);gets(filename);if(fp=fopen(filename,”w”)=NULL)printf(“Savefile%

28、serror!Typeitagain.nn”,filename);exit(0);p=head;while(p!=NULL)fprintf(fp,”%st”,p->name);fprintf(fp,”%ldt”,p->num);fprintf(fp,”%dt”,p->age);fprintf(fp,”%ct”,p->sex);fprintf(fp,”%dt”,p->score0)fprintf(fp,”%dt”,p->score1)fprintf(fp,”%dt”,p->score2)fprintf(fp,”%stn”,p->tele);p=p-

29、>next;printf(“nttSuccess!n”);fclose(fp);structstud*load()/*链表的导入*/FILE*fp;charfilename20;structstud*head,*p1,*p2;printf(“nninputthefilename:“);fflush(stdin);gets(filename);if(fp=fopen(filename,”r”)=NULL)printf(“Loadfile%serror!Typeitagain.nn”,filename);exit(0);if(!feof(fp)head=(strfscanf(fp,fscanf(fp,fscanf(fp,fscanf(fp,fscanf(fp,fscanf(fp,fscanf(fp,fsc