if(strcmp(openfile, y)==NULL)) if((fp=fopen("d: \\student. txt","r))==NULL) printi("不能打开文件!m") while(feof(fp)==0) fscanf(fp, %s %s %s%d%d %d %d %d %d\n", stu[n]. Class, stun].Student Number, stu[ &stu[n]. Total, &stu[]. Score[0], &stu(n]. Score[ 1), &stu(n)Score[2], &stu[n]. Score[3], &stu[n]. Score[4); fclose(fp) else printi("请创建一个新文件" student txt"m") system("cls") /*用 system调用dos命令,清屏* printf("-wwwwwwmItttltht printf("ht欢迎进入教学成绩管理系统Ⅶn") printf("%%%%%%%%%‰%%‰%8‰%%%%%%%%%%%%%%ttit%%%%%%%%%%% %%%%%%%%%%%%%%%%n") printf( printf("\nInInIn") printf("单位:北京三零九中学n”) printf("地址:北京市海淀区mn") printi("电话:010-700000 printf("InininIn") printf( n") printf("本系统由“天地人和软件有限公司”开发n") printi("地址:北京市海淀区学院路ln") printi("编制人:天天n"); printf( printf("\nin"); printf("t请任意输入一个值并回车进入系统ln") exit(1) system("cls") /*用 system调用dos命令,清屏*if((strcmp(openfile,"y")==NULL)) { if((fp=fopen("d:\\student.txt","r"))==NULL) { printf("不能打开文件！\n"); exit(0); } while (feof(fp)==0) { fscanf(fp,"%s %s %s %d %d %d %d %d %d\n",stu[n].Class,stu[n].StudentNumber,stu[n].Na me, &stu[n].Total,&stu[n].Score[0],&stu[n].Score[1],&stu[n].Score[2], &stu[n].Score[3],&stu[n].Score[4]); n++; } fclose(fp); } else printf("请创建一个新文件\"student.txt\".\n"); system("cls"); /*用 system 调用 dos 命令，清屏*/ printf("~~~~~~~~~~~~~\t\t\t\t\t~~~~~~~~~~~~~\n"); printf("~~~~~~~~~~~~~\t\t\t\t\t~~~~~~~~~~~~~\n"); printf("\t\t 欢迎进入教学成绩管理系统\n"); printf("%%%%%%%%%%%%%%%%%%%%%%%%%%%\t\t\t\t\t%%%%%%%%%%% %%%%%%%%%%%%%%%%\n"); printf("-------------------------------------------------------------"); printf("\n\n\n\n"); printf("单位：北京三零九中学\n"); printf("地址：北京市海淀区\n"); printf("电话:010-70000000"); printf("\n\n\n\n"); printf("==============\t\t==============\n"); printf("本系统由“天地人和软件有限公司”开发\n"); printf("地址：北京市海淀区学院路\n"); printf("编制人：天天\n"); printf("==============\t\t==============\n"); printf("\n\n"); printf("\t\t 请任意输入一个值并回车进入系统\n"); scanf("%s",&choice); if(choice=='n'||choice=='N') exit(1); system("cls"); /*用 system 调用 dos 命令，清屏*/ do