学生籍贯信息管理系统c

1、优选文档优选文档PAGEPAGE15优选文档PAGE学生籍贯信息管理系统(c.txt吃吧吃吧不是罪,再胖地人也有权益去增肥！苗条背后其实是憔倅,爱你地人不会在乎你地腰围！尝尝分别已久美食地滋味,就算撑死也是一种美！减肥最可怕地不是饥饿,而是你显然不饿但总感觉非得吃点什么才扎实.编制一个学生籍贯信息管理系统,每个学生信息包括：学号、姓名、籍贯.详尽功能：1）创办信息链表并以磁盘文件保存；2）读取磁盘文件并显示输出所有学生地籍贯信息；3）按学号或姓名盘问其籍贯；4）按籍贯盘问并输出该籍贯地所有学生；5）能增加、删除和更正学生地籍贯信息#include#include#defineLENsizeof

2、(structstudent#defineNULL0structstudentlongnum。charname20。charjg20。structstudent*n=0。voidsave(structstudent*headFILE*fp。charfilename20。structstudent*p1。printf(Pleaseinputthefilenamenscanf(%s,filename。if(fp=fopen(filename,w=NULLprintf(cantopenfilenreturn。for(p1=head。p1!=NULL。p1=p1-nextfprintf

3、(fp,%ld,p1-num。fputc(t,fp。fprintf(fp,%s,p1-name。fputc(t,fp。fputc(t,fp。fprintf(fp,%s,p1-jg。fputc(n,fp。free(p1。fclose(fp。voidprint(structstudent*headstructstudent*p。printf(nNow,theseinformationis:n。p=head。if(head!=NULLdoprintf(%ldt%stt%sn,p-num,p-name,p-jg。p=p-next。while(p!=NULL。structstudent*creat(st

4、ructstudent*head,*p1,*p2。charch。p1=p2=(structstudent*malloc(LEN。printf(nWelcometostudentjiguansystem!nprintf(Pleaseinputonesnum,nameandjiguannprintf(000:exitn。scanf(%ld%s%s,&p1-num,p1-name,p1-jg。b5E2RGbCAP。p1EanqFDPwhead=NULL。while(p1-num!=0n=n+1。if(n=1head=p1elsep2-next=p1。p2=p1。p1=(structstudent*m

5、alloc(LEN。scanf(%ld%s%s,&p1-num,p1-name,p1-jg。p2-next=NULL。free(p1。printf(Save?Y/Nn。scanf(%c,&ch。scanf(%c,&ch。if(ch=y|ch=Ysave(head。print(head。return(head。voidloadf(FILE*N=n。charfilename20。structstudent*p1。p1=(structstudent*malloc(LEN。printf(Pleaseinputthefilenamen。scanf(%s,filename。if(fp=fope

6、n(filename,r=NULLprintf(cannotopenfilen。return。printf(Filehasbeenopen:n。for(。N!=0。N-fscanf(fp,%ld%s%s,&p1-num,p1-name,p1-jgprintf(%ldt%stt%sn,p1-num,p1-name,p1-jg。free(p1。fclose(fp。voidxsearch(structstudent*headlongnum。structstudent*p1,*c=0。printf(Pleaseinputthesearchnumber:nscanf(%ld,&num。for

7、(p1=head。p1!=NULL。p1=p1-nextif(num=p1-numc=c+1。printf(%ldt%stt%sn,p1-num,p1-name,p1-jg。printf(Thereare%dresults!n,c。voidnsearch(structstudent*headcharname20。structstudent*p1,*c=0。printf(Pleaseinputthesearchname:nscanf(%s,name。for(p1=head。p1!=NULL。p1=p1-nextif(strcmp(name,p1-name=0c=c+1。printf(

8、%ldt%stt%sn,p1-num,p1-name,p1-jg。printf(Thereare%dresults!n,c。voidjsearch(structstudent*headcharjg20。structstudent*p1,*c=0。printf(Pleaseinputthesearchjiguan:n。scanf(%s,jg。for(p1=head。p1!=NULL。p1=p1-nextif(strcmp(jg,p1-jg=0c=c+1。printf(%ldt%stt%sn,p1-num,p1-name,p1-jg。printf(Thereare%dresults!n

9、,c。voidsearch(structstudent*headinta=4。for(。a!=0。printf(nWelcometostudentjuguansystem!nprintf(nsearchinformationsystemnprintf(0:exitn。printf(1:usexuehaosearchnprintf(2:usenamesearchnprintf(3:usejiguansearchnprintf(Pleaseselect:n。scanf(%d,&a。clrscr(。switch(acase0:printf(Thankyouforplaying!Bye!n。break

10、。DXDiTa9E3dcase1:xsearch(head。break。case2:nsearch(head。break。case3:jsearch(head。break。default:printf(Chooseerror,chooseagain!n。break。RTCrpUDGiTstructstudent*del(structstudent*head,structstudent*p15PCzVD7HxAstructstudent*p2。charch。if(p1=NULLprintf(Noresult,cantmanage!n。elseif(p1=headhead=p1-next。else

11、for(p2=head。p2-next!=p1。p2=p2-next。p2-next=p1-next。n=n-1。printf(Savethechange?Y/Nn。scanf(%c,&ch。scanf(%c,&ch。if(ch=y|ch=Ysave(head。free(p1。free(p2。return(head。voidchange(structstudent*head,structstudent*p1jLBHrnAILgcharch。if(p1=NULLprintf(Noresult,cantmanage!n。elseprintf(Pleaseinputthenewinformation

12、ofit.n。xHAQX74J0Xscanf(%ld%s%s,&p1-num,p1-name,p1-jg。printf(Savethechange?Y/Nn。scanf(%c,&ch。scanf(%c,&ch。if(ch=y|ch=Ysave(head。structstudent*add(structstudent*head,structstudent*p1inta。charch。structstudent*p0,*p2。LDAYtRyKfEp0=p2=(structstudent*malloc(LEN。if(p1=NULLprintf(Noresult,cantmanage!nelsepri

13、ntf(Pleaseinputthenewstudentsinformation.nscanf(%ld%s%s,&p0-num,p0-name,p0-jgprintf(Wherewouldyouliketoadd?nprintf(1:addbeforeitn。printf(2:addafteritn。scanf(%d,&a。switch(acase1:if(p1=head。Zzz6ZB2Ltk。p0-next=p1。head=p0。elsefor(p2=head。p2-next!=p1。p2=p2-next。p0-next=p1。p2-next=p0。break。case2:if(p1-nex

14、t=NULLp1-next=p0。p0-next=NULL。elsep2=p1-next。p0-next=p2。p1-next=p0。break。default:printf(Chooseerror,chooseagain!n。break。n=n+1。printf(Savethechange?Y/Nnscanf(%c,&ch。scanf(%c,&ch。if(ch=Y|ch=ysave(head。free(p0。free(p1。free(p2。return(head。structstudent*inman(structstudent*a=4。longnum。charn

15、ame20。charjg20。structstudent*p1。printf(Inputitsfeature,soyoucandealwithit.nprintf(0:exitn。printf(1:inputitsnumbernprintf(2:inputitsnamenprintf(3:inputitsjiguann。dvzfvkwMI1scanf(%d,&a。clrscr(。switch(acase0:p1=NULL。break。case1:printf(Pleaseinputthesearchnumber:n。rqyn14ZNXIscanf(%ld,&num。for(p1=headif(

16、num=p1-num。p1!=NULL。p1=p1-nextprintf(%ldt%stt%sn,p1-num,p1-name,p1-jg。EmxvxOtOcoprintf(Isthisoneyouwant?nprintf(Y/Nnscanf(%c,&ch。scanf(%c,&ch。if(ch=Y|ch=ybreak。break。case2:printf(Pleaseinputthesearchname:n。scanf(%s,name。for(p1=head。p1!=NULL。p1=p1-nextif(strcmp(name,p1-name=0printf(%ldt%stt%sn,p1-num

17、,p1-name,p1-jg。SixE2yXPq5printf(Isthisoneyouwant?nprintf(Y/Nnscanf(%c,&ch。scanf(%c,&ch。if(ch=Y|ch=ybreak。break。case3:printf(Pleaseinputthesearchjiguan:n。6ewMyirQFLscanf(%s,jg。for(p1=head。p1!=NULL。p1=p1-nextif(strcmp(jg,p1-jg=0printf(%ldt%stt%sn,p1-num,p1-name,p1-jg。kavU42VRUsprintf(Isthisoneyouwant?

18、nprintf(Y/Nnscanf(%c,&ch。scanf(%c,&ch。if(ch=Y|ch=ybreak。break。default:printf(Chooseerror,chooseagain!nif(p1=NULLprintf(Thatsall!n。returnp1。p1=NULL。break。y6v3ALoS89structstudent*manage(structstudent*headstructstudent*a=4。p1=(structstudent*malloc(LEN。for(。a!=0。printf(nWelcometothestudentjiguansystem!nprintf(nmanageinformationsystemnprintf(Whatareyougoingtodo?n。printf(0:exitn。printf(1:addinformationn。printf(2:deleteinformationn。printf(3:changeinformationn。scanf(%d,&a。M2ub6vSTnPclrscr(。switch(acase0:printf(Thankyouforplaying!Bye!ncase1:p1=inman(head。head=add(head,p1。print(head。break。ca