可以參考

#include"stdio.h"/*I/O函式*/

#include"stdlib.h"/*其它說明*/

#include"string.h"/*字串函式*/

#include"conio.h"/*螢幕操作函式*/

#include"mem.h"/*記憶體操作函式*/

#include"ctype.h"/*字元操作函式*/

#include"alloc.h"/*動態地址分配函式*/

structscore

{

intmingci;

charxuehao[8];

charmingzi[20];

floatscore[6];

}data,info[1000];

inti,j,k=0;

chartemp[20],ch;

FILE*fp,*fp1;

voidshuru()

{

if((fp=fopen("s_score.txt","ab+"))==NULL)

{

printf("cannotopenthisfile.\n");

getch();exit(0);

}

for(i=0;i

{

printf("\nPleaseshuruxuehao:");

gets(data.xuehao);

printf("Pleaseshurumingzi:");

gets(data.mingzi);

printf("Pleaseshuruyuwenscore:");

gets(temp);data.score[0]=atof(temp);

printf("Pleaseshurushuxuescore:");

gets(temp);data.score[1]=atof(temp);

printf("Pleaseinputyingyuscore:");

gets(temp);data.score[2]=atof(temp);

printf("Pleaseshuruwuliscore:");

gets(temp);data.score[3]=atof(temp);

printf("Pleaseshurhuaxuescore:");

gets(temp);data.score[4]=atof(temp);

data.score[5]=data.score[0]+data.score[1]+data.score[2]+data.score[3]+data.score[4];

fwrite(&data,sizeof(data),1,fp);

printf("another?y/n");

ch=getch();

if(ch=="n"||ch=="N")

break;

}fclose(fp);

}

voidxianshi()

{

floats;intn;

if((fp=fopen("s_score.txt","rb+"))==NULL)

{

printf("Cannotreadingthisfile.\n");

exit(0);

}

for(i=0;i

{

if((fread(&info[i],sizeof(info[i]),1,fp))!=1)

break;

}

printf("\nxuehaomingziyuwenshuxueyingyuwulihuauxuezhongfen\n");

for(j=0,k=1;j

{

info[j].mingci=k;

printf("%6s%8s%3.1f%3.1f%3.1f%3.1f%3.1f%3.1f\n",info[j].xuehao,info[j].mingzi,info[j].score[0],info[j].score[1],info[j].score[2],info[j].score[3],info[j].score[4],

info[j].score[5]);

}

getch();

fclose(fp);

}

voidxiugai()

{

if((fp=fopen("s_score.txt","rb+"))==NULL||(fp1=fopen("temp.txt","wb+"))==NULL)

{

printf("Cannotopenthisfile.\n");

exit(0);

}

printf("\nPLeaseshuruxiugaixuehao:");

scanf("%d",&i);getchar();

while((fread(&data,sizeof(data),1,fp))==1)

{

j=atoi(data.xuehao);

if(j==i)

{

printf("xuehao:%s\nmingzi:%s\n",data.xuehao,data.mingzi);

printf("Pleaseshurumingzi:");

gets(data.mingzi);

printf("Pleaseshuruyuwenscore:");

gets(temp);data.score[0]=atof(temp);

printf("Pleaseshurushuxuescore:");

gets(temp);data.score[1]=atof(temp);

printf("Pleaseinputyingyuscore:");

gets(temp);data.score[2]=atof(temp);

printf("Pleaseinputwuliscore:");

gets(temp);data.score[3]=atof(temp);

printf("Pleaseinputhuaxuescore:");

gets(temp);data.score[4]=atof(temp);

data.score[5]=data.score[0]+data.score[1]+data.score[2]+data.score[3]+data.score[4];

}fwrite(&data,sizeof(data),1,fp1);

}

fseek(fp,0L,0);

fseek(fp1,0L,0);

while((fread(&data,sizeof(data),1,fp1))==1)

{

fwrite(&data,sizeof(data),1,fp);

}

fclose(fp);

fclose(fp1);

}

voidchazhao()

{

if((fp=fopen("s_score.txt","rb"))==NULL)

{

printf("\nCannotopenthisfile.\n");

exit(0);

}

printf("\nPLeaseshuruxuehaochakan:");

scanf("%d",&i);

while(fread(&data,sizeof(data),1,fp)==1)

{

j=atoi(data.xuehao);

if(i==j)

{

printf("xuehao:%smingzi:%s\nyuwen:%f\nshuxue:%f\nyingyu:%f\nwuli:%f\nhuaxue:%f\n",data.xuehao,data.mingzi,data.score[0],data.score[1],data.score[2],data.score[3],data.score[4],data.score[5]);

}getch();

}

}

voidshanchu()

{

if((fp=fopen("s_score.txt","rb+"))==NULL||(fp1=fopen("temp.txt","wb+"))==NULL)

{

printf("\nopenscore.txtwasfailed!");

getch();

exit(0);

}

printf("\nPleaseinputIDwhichyouwanttodel:");

scanf("%d",&i);getchar();

while((fread(&data,sizeof(data),1,fp))==1)

{

j=atoi(data.xuehao);

if(j==i)

{

printf("Anykeywilldeletit.\n");

getch();

continue;

}

fwrite(&data,sizeof(data),1,fp1);

}

fclose(fp);

fclose(fp1);

remove("s_score.txt");

rename("temp.txt","s_score.txt");

printf("Datadeletwassuccesful!\n");

printf("Anykeywillreturntomain.");

getch();

}

main()

{

while(1)

{

clrscr();/*清螢幕*/

gotoxy(1,1);/*移動游標*/

textcolor(YELLOW);/*設定文字顯示顏色為黃色*/

textbackground(BLUE);/*設定背景顏色為藍色*/

window(1,1,99,99);/*製作顯示選單的視窗，大小根據選單條數設計*/

clrscr();

printf("*************welcometousestudentmanage******************\n");

printf("*************************menu********************************\n");

printf("*=========================================================*\n");

printf("*1>shuru2>xiugai*\n");

printf("*3>shanchu4>chazhao*\n");

printf("*5>xianshi6>exit*\n");

printf("**\n");

printf("*---------------------------------------------------------*\n");

printf("Pleaseinputwhichyouwant(1-6):");

ch=getch();

switch(ch)

{

case"1":shuru();break;

case"2":xiugai();break;

case"3":shanchu();break;

case"4":chazhao();break;

case"5":xianshi();break;

case"6":exit(0);

default:continue;

}

}

}