学生档案系统28127

1、C语言程序设计课程设计书课题：学生成绩管理系统班级：1003专业：教育信息与技术学院成员：谭俊奇胡梦东吴峰指导教师：黄海军时间：2018年6月142018年6月28日学生成绩管理系统.人员分配:谭俊奇负责源程序的编写，写出流程图并评价。胡梦东查找参考资料，上机核对程序的运仃情况。吴峰负责对源程序的核对及对整个实验的评价。1.设计要求:1)根据键盘上的数子，疋义成绩管理系统的分配任务2)该系统可以增加学生成绩的记录。3)该系统可以查找学生的成绩4)该系统可以统计总成绩和平均分)5)该系统可以修改学生信息6)该系统可以查看学生成绩7)该系统可以删除学生成绩8)该系统可以输出不及格人数9)可以保存修

2、改信息10)可以随时退出系统参考资料1) 参考windowsapi函数大全2) 参考C语言程序总汇3) 参考C语言上机实验题库4) 参考C语言系统操作手册四. 系统结构和部分流程图总结构22/14voidzz(>voidselect(>#inelude#inelude#ineludevoid1rf(>return0#definetrue1structstudentcharname60。charID7。dq(structstudentst>。voidxianshi(>。voidbc(structstudentst>。voidadd(&g

3、t;。voidselect(>。voidzz(>。voidchazhao(>。voidxhcz(>。voidxmcz(>。voiddel(>。voidxmsc(>。voidxhsc(>。voidtj(>。voidbjg(>。voidxg(>。voidxhxg(>。voidxmxg(>。voidbca(>。voidfh(>。Number=0。voidmain(>intchoose=0。FILE*fp=NULL。charyesorno。if(fp=fopen(

4、"C:/student.dat","rb">>=NULL>五. 源代码<stdio.h><stdlib.h><string.h>?(y/nn"。printf("n=提示：文件不存在，是否要创建一个seanf("%c",&yesorno。if(yesorno='y'|yesorno='Y'fp=fopen("C:/student.dat","wb"。fclose(fp。elseexit

5、(0。elseNumber=dq(st。system("cls"。while(truexianshi(。printf("tt=请选择："。scanf("%d",&choose。system("cls"。switch(choosecase0:exit(0。fh(。break。case1:add(。fh(。break。case2:select(。fh(。break。case3:chazhao(。fh(。break。case4:del(。fh(。break。case5:tj(。fh(。break。case6:bj

6、g(。fh(。break。case7:xg(。fh(。break。case8:zz(。fh(。break。case9:bca(。break。default:break。fflush(stdin。getchar(。system("cls"。voidbca(printf("t=程序在运行时已自动保存.n"。voidfh(>printf("t=>按Enter键返回主菜单n">。voidxg(>intway=0。printf(”请选择修改查找方式n">。printf("1按姓名查找修改n&qu

7、ot;>。printf("2按学号查找修改n">。scanf("%d",&way>。switch(way>case1:xmxg(>。break。case2:xhxg(>。break。default:printf("输入有误，结束!n">。break。voidxmxg(>FILE*fp=NULL。i=0。intchangelndex=0。intindex=0。printf("请输入要修改的学生姓名：">。scanf("

8、%s",name。for(i=0。i<Number。i+>if(strcmp(name,>>changelndex=i。breako。b5Eprintf("t姓名t学号t成绩n">。printf("t%st%st%dnn",,stchangelndex.ID,stchangelndex.score>2RGbCAPprintf("请重新输入该学生信息">。printf("姓名：">。scanf("%

9、s",。printf("学号：">。scanf("%s",stchangelndex.lD>。printf(”成绩：">。seanf("%d",&stchangelndex.score>。fp=fopen("C:/student.dat","wb">。for(i=0。i<Number。i+>fwrite(&sti,sizeof(structstudent>,1,fp>。f

10、close(fp>。voidxhxg(>FILE*fp=NULL。i=0。intchangelndex=0。intindex=0。printf("请输入要修改的学生学号：">。scanf("%s",id>。for(i=0。i<Number。i+>if(strcmp(id,sti.ID>>changelndex=i。break。p1Eprintf("t姓名t学号t成绩n">。printf("t%st%st%dnn",stchangelnde

11、,stchangelndex.ID,stchangelndex.score>anqFDPwprintf("请重新输入该学生信息">。printf("姓名：">。scanf("%s",。printf("学号：">。scanf("%s",stchangelndex.lD>。printf("成绩：">。scanf("%d",&stchangelndex.score>

12、。fp=fopen("C:/student.dat","wb">。for(i=0。i<Number。i+>fwrite(&sti,sizeof(structstudent>,1,fp>。fclose(fp>。printf("t=>修改成功n">。voidbjg(>inti=0。printf(”以下是不及格:n">。printf("t姓名t学号t成绩n">。for(i=0。i<Number。i+>if(sti.score&

13、lt;60>。DXDiTa9E3dprintf("t%st%st%dn",,sti.ID,sti.score>voidtj(>inti=0。doublesum=0.0。for(i=0。i<Number。i+>sum+=sti.score。printf(”全班总分为：%fn",sum>。printf(”平均分为：%fn",sum/Number>。voiddel(>intn=0。printf("1按姓名删除n">。printf("2按学号删除n"&g

14、t;。scanf("%d",&n>。switch(n>case1:xmsc(>。break。case2:xhsc(>。break。voidxmsc(>FILE*fp=NULL。i=0。intj=0。printf("请输入要删除的学生姓名：">。seanf("%s",name。for(i=0。i<Number。i+>if(stremp(name,>=0>for(j=i。j<Number-1。j+>stj=stj+1

15、。Number-。fp=fopen("C:/student.dat","wb">。for(i=0。i<Number。i+>fwrite(&sti,sizeof(structstudent>,1,fp>。fclose(fp>。printf("删除成功。n">。voidxhsc(>FILE*fp=NULL。i=0。intj=0。printf("请输入要删除的学生学号：">。scanf("%s",id>。for

16、(i=0。i<Number。i+>if(strcmp(id,sti.ID>=0>for(j=i。j<Number-1。j+>stj=stj+1。Number-。fp=fopen("C:/student.dat","wb">。for(i=0。i<Number。i+>fwrite(&sti,sizeof(structstudent>,1,fp>。fclose(fp>。printf("删除成功。n">。voidchazhao(>intn=0。prin

17、tf("1按姓名查找n">。printf("2按学号查找n">。scanf("%d",&n>。switch(n>case1:xmcz(>。break。case2:xhcz(>。break。default:printf("输入有误，结束!n">。breakovoidxhcz(>i=0。printf("请输入要查找学生学号："。scanf("%s",id>。system("cls&quo

18、t;>。printf("t姓名t学号t成绩n">。for(i=0。i<Number。i+>if(strcmp(id,sti.ID>=0>。RTCrpUDGiTprintf("t%st%st%dn",,sti.ID,sti.score>voidxmcz(>i=0。printf("请输入要查找学生姓名："。scanf("%s",name。system("cls">。printf("t姓名t学号t

19、成绩n">。for(i=0。i<Number。i+>if(strcmp(name,>=0>printf("t%st%st%dn",,sti.ID,sti.score>。5PCzVD7HxAvoidzz(>printf("t*nn">。jLBHrnAILprint("tAAAAAAAAAprintf("tAAAAAAAAAprintf("tAAAAAAAAAprintf(%AAAAAAAAA学生成绩管理系统AAAAAAAAAAnn&quo

20、t;>。XHAQX74J0X湖北师范学院aaaaaaaaaa门门">。LDAYtRyKfE教育信息与技术学院aaaaaaaaaann">。Zzz6ZB2Ltk谭俊奇AAAAAAAAAAnn">。dvzfvkwMIlprintf("t*nn">。rqyn14ZNXIvoidselect(>inti=0。printf("以下是全部学生成绩n">。printf("t姓名t学号t成绩n">。for(i=0。i<Number。i+>printf("

21、;t%st%st%dn",,sti.ID,sti.score>。EmxvxOtOcovoidadd(>intnumberTemp=O。inti=0。structstudenttemp。printf("请输入要增加学生成绩个数：">。scanf("%d",&numberTemp>。for(i=0。i<numberTemp。i+>printf("输入第%d个同学信息n",i+1>。printf("姓名：">。scanf("%s&

22、quot;,>。printf("学号：">。scanf("%s",tempD>。printf("成绩：">。scanf("%d",&temp.score>。stNumber+=temp。be(&temp>。printf(”添加成功n">。voidbe(struetstudent*st>FILE*fp=NULL。fp=fopen("C:/student.dat","ab+">。fw

23、rite(st,sizeof(structstudent>,1,fp>。fclose(fp>。intdq(structstudentst>FILE*fp=NULL。inti=0。fp=fopen("C:/student.dat","rb">。while(fread(&sti,sizeof(structstudent>,1,fp>>i+。fclose(fp>。returni。voidxianshi(>printf("t*n">。SixE2yXPq5printf("t*n">。printf("t*学生成绩管理系统printf("t*n">。printf("t*1printf("t*3printf("t*5printf("t*7printf("t*9*n">。增加学生成绩查找学生成绩统计<总成绩和平均分）修改学生信息8保存数据24*n”查看学生成绩删除学生成绩6输出不及格人数关于作者*n">。*n”。6ewMyirQFL。kavU42VRUs*n">。0退出系统y6v3ALoS89*n&q