学生选修课管理系统-C++课程设计教学内容

1、生选修课管理系统-C+课程设计精品文档收集于网络，如有侵权请联系管理员删除#include#include#include#include#include/usingnamespacestd;constintcount=3;classsituaction;classstudentpublic:intsno;charsname20;charsex3;intage;chardepart20;charclassno20;charlianx40;/public:friendvoidsselect();friendvoidsupdate();friendvoidsdelet();friendvoidsa

2、ccount();friendvoidsdisplay();friendistream&operator(istream&in,student&stu)instu.snostu.snamestu.sexstu.agestu.departstu.classnostu.lianx;returnin;friendostream&operator(ostream&out,student&stu)outstu.snostu.snamestu.sexstu.agestu.departstu.classnostu.lianxendl;returnout;friendvoidxkadd();friendvoi

3、dsadd();voidsadd()while(1)intflag1=0;students;cout请输入要添加的学生的学号、姓名、性别、年龄、系别、班级、联系方式s;ifstreamin(e:studenfile.txt);if(!in)cout打开学生信息文件失败！endl;return;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()if(s.sno=stu.sno)flag1=1;break;in.read(char*)&stu,sizeof(student);in.close();if(flag1=1)cout

4、该学生已经在文件中存在不允许添加！endl;elseofstreamout(e:studenfile.txt,ios二app);out.write(char*)&s,sizeof(student);out.close();system(pause);break;voidsselect()while(1)system(cls);cout*请选择要查询的类别：*endl;cout*按学生学号请按1:*endl;cout*按学生姓名请按2：*endl;cout*按学生系别请按3:*endl;cout*按学生班级请按4：*endl;cout*返回上一级界面请按5:*sn;while(sn5|sn1)c

5、out选择的数据无效，请重新输入：sn;coutendl;ifstreamin(e:studentfile.txt);if(!in)cout打开学生信息文件失败！endl;return;intflag=0;switch(sn)intno;cout请输入要查询白学生的学号no;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()if(no=stu.sno)coutstuendl;flag=1;in.read(char*)&stu,sizeof(student);break;charname20;cout请输入要查询白学生的姓名

6、name;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()if(strcpy(name,stu.sname)=0)coutstuendl;flag=1;in.read(char*)&stu,sizeof(student);break;chardep20;cout请输入要查询白学生的系别dep;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()if(strcmp(dep,stu.depart)=0)coutstuendl;flag=1;in.read(

7、char*)&stu,sizeof(student);break;charclno20;cout请输入要查询白学生的班级clno;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()if(strcmp(clno,stu.classno)=0)coutstuendl;flag=1;in.read(char*)&stu,sizeof(student);break;return;in.close();if(flag=0)cout”要查询的学生在文件不存在！endl;system(pause);voidsupdate()while(

8、1)system(cls);cout*请选择按下列类别查询后修改：*endl;cout*按学生学号请按1:*endl;cout*按学生姓名请按2：*endl;cout*按学生系别请按3:*endl;cout*按学生班级请按4：*endl;cout*返回上一级界面请按5:*sn;while(sn5|sn1)cout选择的数据无效，请重新输入：sn;coutendl;fstreamin(e:studenfile.txt,ios:in|ios:out);if(!in)cout打开学生信息文件失败！endl;return;intflag=0;switch(sn)intno;cout请输入要查询白学生的

9、学号no;studentstu;inti=0;in.seekg(i*sizeof(student),ios二beg);in.read(char*)&stu,sizeof(student);while(!in.eof()if(no=stu.sno)coutstuendl;cout青输入要修改的学生的学号、姓名、性别、年龄、系别、班级、联系方式“stu;in.seekp(i*sizeof(student),ios二beg);in.write(char*)&stu,sizeof(student);flag=1;i+；in.seekg(i*sizeof(student),ios二beg);in.rea

10、d(char*)&stu,sizeof(student);break;return;in.close();if(flag=0)cout”要修改的学生在文件不存在！endl;system(pause);voidsdelet()while(1)system(cls);cout*请选择按下歹U类别查询后删除：*endl；cout*按学生学号请按1:*endl;cout*按学生姓名请按2：*endl;cout*按学生系别请按3:*endl;cout*按学生班级请按4:*endl;cout*返回级界面请按5:*sn;while(sn5|sn1)cout选择的数据无效，请重新输入：sn;coutendl;

11、studentstu20;intflag=0;switch(sn)ifstreamin(e:studenfile.txt);if(!in)cout打开学生信息文件失败！endl;return;intn=0;in.read(char*)&stun,sizeof(student);while(!in.eof()n+;in.read(char*)&stun,sizeof(student);in.close();intno;cout请输入要删除白学生的学号no;for(inti=0;in;i+)if(no=stui.sno)coutstuiendl;cout是否要删除该学生的信息！ch;if(ch=Y

12、|ch=y)for(intj=i;jn;j+)stuj=stuj+1;n-；flag=1;if(flag=0)cout”要修改的学生在文件不存在！endl;elseofstreamout(e:studenfile.txt);if(!out)cout打开学生信息文件失败！endl;return;for(intk=0;kn;k+)out.seekp(k*sizeof(student),ios二beg);out.whte(char*)&stuk,sizeof(student);out.close();break;return;system(pause);voidsaccount()ifstreami

13、fs(e:studentfile.txt);if(!ifs)cout打开文件失败！;system(pause);return;inti=0;students;ifs.read(char*)&s,sizeof(student);while(!ifs.eof()i+；ifs.read(char*)&s,sizeof(student);ifs.close();cout学生：i人endl;ifs.close();system(pause);voidsdisplay()ifstreamin(e:studentfile.txt,ios:in);if(!in)cout打开学生信息文件失败！endl;retu

14、rn;studentstu;in.read(char*)&stu,sizeof(student);while(!in.eof()coutstu(istream&in,course&cou)amecou.cxzcou.zxscou.xfcou.kcxqcou.xxrs;returnin;)friendostream&operator(ostream&out,course&cou)amecou.cxzcou.zxscou.xfcou.kcxqcou.xxrsendl;returnout;)friendvoidxkadd(););voidcadd()intflag1=0;coursec;cout请输

15、入要添加的课程的课程代码、课程名称、课程性质、总学时、学分、开课学期、选修人数“c;ifstreamin(e:coursefile.txt);if(!in)cout打开课程信息文件失败！endl;return;coursecou;in.read(char*)&cou,sizeof(course);while(!in.eof()if(o=o)flag1=1;break;in.read(char*)&cou,sizeof(course);in.close();if(flag1=1)cout该课程已经在文件中存在不允许添加！endl;elseofstreamout(e:coursefile.txt,

16、ios二app);out.write(char*)&c,sizeof(course);out.close();system(pause);voidcselect()while(1)system(cls);cout*请选择要查询的类别：*endl；cout*按课程编号请按1:*endl;cout*按课程名称请按2:*endl;cout*返回上一级界面请按3:*sn;while(sn3|sn1)cout选择的数据无效，请重新输入：sn;coutendl;ifstreamin(e:coursefile.txt);if(!in)cout打开课程信息文件失败！endl;return;intflag=0;

17、switch(sn)intno;cout请输入要查询白课程的编号no;courseke;in.read(char*)&ke,sizeof(course);while(!in.eof()if(no=o)coutkeendl;flag=1;in.read(char*)&ke,sizeof(course);/if(no=ke.char*)&ke,sizeof(course);break;charname25;cout请输入要查询白课程的名称name;courseke;in.read(char*)&ke,sizeof(course);while(!in.eof()if(strcpy(name,ame)

18、=0)coutkeendl;flag=1;in.read(char*)&ke,sizeof(course);break;return;in.close();if(flag=0)cout”要查询的课程在文件不存在！endl;system(pause);voidcupdate()while(1)system(cls);cout*请选择按卜列类别查询后修改：*endi；cout*按课程编号请按1:*endl;cout*按课程名称请按2:*endl;cout*按课程性质请按3:*endl;cout*按课程学分请按4:*endl;cout*返回上-级界面请按5:*sn;while(sn5|sn1)cou

19、t选择的数据无效，请重新输入：sn;coutendl;fstreamin(e:studenfile.txt,ios:in|ios:out);if(!in)cout打开课程信息文件失败！endl;return;intflag=0;switch(sn)intno;cout请输入要查询白课程的编号no;coursek;inti=0;in.seekg(i*sizeof(course),ios:beg);in.read(char*)&k,sizeof(course);while(!in.eof()if(no=o)coutkendl;质，学分cout青输入要修改的课程的编号，名称,k;in.seekp(i

20、*sizeof(course),ios二beg);in.write(char*)&k,sizeof(course);flag=1;i+；in.seekg(i*sizeof(course),ios二beg);in.read(char*)&k,sizeof(course);break;intno;cout请输入要查询白学生的学号no;studentstu;inti=0;in.seekg(i*sizeof(student),ios二beg);in.read(char*)&stu,sizeof(student);endl;while(!in.eof()if(no=stu.sno)coutstuendl

21、;coutstu;in.seekp(i*sizeof(student),ios二beg);in.write(char*)&stu,sizeof(student);flag=1;i+；in.seekg(i*sizeof(student),ios二beg);in.read(char*)&stu,sizeof(student);break;case3:return;in.close();if(flag=0)cout”要修改的选课信息在文件不存在！endl;system(pause);voidcdelet()while(1)system(cls);cout*请选择按下列类别查询后删除:*endi；co

22、ut*按课程编号请按1:*endl;cout*按课程名称请按2:*endl;cout*返回上一级界面请按3:*sn;while(sn3|sn1)cout选择的数据无效，请重新输入：sn;coutendl;coursek20;intflag=0;switch(sn)case1:ifstreamin(e:coursefile.txt);if(!in)cout打开课程信息文件失败！endl;return;intn=0;in.read(char*)&kn,sizeof(course);while(!in.eof()n+;in.read(char*)&kn,sizeof(course);in.close

23、();intno;cout请输入要删除白课程的编号no;for(inti=0;in;i+)if(no=o)coutkiendl;cout是否要删除该课程的信息！ch;if(ch=Y|ch=y)for(intj=i;jn;j+)kj=kj+1;n-;flag=1;if(flag=0)cout”要修改的课程在文件不存在！endl;elseofstreamout(e:coursefile.txt);if(!out)cout,打开课程信息文件失败！endl;return;for(inti=0;in;i+)out.seekp(i*sizeof(course),ios二beg);out.write(cha

24、r*)&ki,sizeof(course);out.close();break;case5:return;system(pause);voidcaccount()ifstreamifs(d:coursefile.txt);if(!ifs)cout打开文件失败！;system(pause);return;inti=0;courseke;ifs.read(char*)&ke,sizeof(course);while(!ifs.eof()i+；ifs.read(char*)&ke,sizeof(course);ifs.close();cout课程：i门endl;ifs.close();system(

25、pause);voidcdisplay()ifstreamin(e:coursefile.txt);if(!in)cout打开课程信息文件失败！endl;return;coursecou;in.read(char*)&cou,sizeof(course);while(!in.eof()cout(istream&in,situaction&si)o;si.score=0;returnin;friendostream&operator(ostream&out,situaction&si)osi.scoreendl;returnout;；voidxkadd()situactionxk;cout请输入

26、要选修的学号、课程号xk;intflag1=0,flag2=0;ifstreamin1(e:studentfile.txt);if(!in1)cout打开学生信息文件失败！endl;return;studentstu;in1.read(char*)&stu,sizeof(student);while(!in1.eof()if(xk.sno=stu.sno)flag1=1;break;in1.read(char*)&stu,sizeof(student);in1.close();if(flag1=0)cout该学生不存在不允许选课！endl;elsecoursecou;ifstreamin2(e

27、:coursefile.txt);if(!in2)cout打开课程文件失败！endl;return;in2.read(char*)&cou,sizeof(course);while(!in2.eof()if(o=o)flag2=1;break;in2.read(char*)&cou,sizeof(course);in2.close();if(flag2=0)cout”该课程不存在不允许选课！endl;elsesituactionsi;intscount=0,ccount=0;ifstreamin3(e:situationfile.txt);if(!in3)cout,打开选课文件失败！endl;

28、return;in3.read(char*)&si,sizeof(situaction);while(!in3.eof()if(xk.sno=si.sno)ccount+;if(o=o)scount+;in3.read(char*)&si,sizeof(situaction);in3.close();if(cou.xxrs=scount)cout该课程人数已满不允许选课！endl;elseif(count=ccount)cout修学生已选满count不允许选课!endl;elseofstreamout(e:situactionfile.txt,ios二app);out.whte(char*)&

29、xk,sizeof(situaction);out.close();system(pause);voidxkselect()while(1)system(cls);cout”*请选择要查询的类别：*endl;cout*按学生编号请按1:*IIendl;cout*按课程编号请按2：*endl;cout*返回上一级界面请按3:*sn;while(sn3|sn1)cout选择的数据无效，请重新输入：sn;coutendl;ifstreamin(e:situactionfile.txt);if(!in)cout打开选课信息文件失败！endl;return;intflag=0;switch(sn)int

30、no;cout请输入要查询白学生的学号no;situactionstu;in.read(char*)&stu,sizeof(situaction);while(!in.eof()if(no=stu.sno)coutstuendl;flag=1;in.read(char*)&stu,sizeof(situaction);break;intno;cout请输入要查询白课程的编号no;situactionke;in.read(char*)&ke,sizeof(situaction);while(!in.eof()if(no=o)coutkeendl;flag=1;in.read(char*)&ke,

31、sizeof(situaction);/if(no=ke.char*)&ke,sizeof(course);break;return;in.close();if(flag=0)cout”要查询的选课在文件不存在！endl;system(pause);voidxkupdate()while(1)system(cls);cout*请选择按下列类别查询后修改:*endl，cout*按课程编号请按1:*endl;cout*按学生学号请按2：*endl;cout*返回上一级界面请按3:*sn;while(sn3|sn1)cout选择的数据无效，请重新输入：sn;coutendl;fstreamin(e:

32、situactionfile.txt,ios:in|ios:out);if(!in)cout打开选课信息文件失败！endl;return;intflag=0;switch(sn)intno;cout请输入要查询白课程的编号no;situactionsi;inti=0;in.seekg(i*sizeof(situaction),ios二beg);in.read(char*)&si,sizeof(situaction);while(!in.eof()if(no=o)coutsiendl;cout青输入要修改的选课信息的学生学号，选课信息成绩si;in.seekp(i*sizeof(situacti

33、on),ios二beg);in.whte(char*)&si,sizeof(situaction);flag=1;i+；in.seekg(i*sizeof(situaction),ios二beg);in.read(char*)&si,sizeof(situaction);break;intno;cout请输入要查询白学生的学号no;studentstu;inti=0;in.seekg(i*sizeof(student),ios二beg);in.read(char*)&stu,sizeof(student);while(!in.eof()if(no=stu.sno)coutstuendl;cou

34、t青输入要修改的选课信息的学生学号，选课信息成绩stu;in.seekp(i*sizeof(situaction),ios二beg);in.write(char*)&stu,sizeof(situaction);flag=1;i+；in.seekg(i*sizeof(situaction),ios二beg);in.read(char*)&stu,sizeof(situaction);break;return;in.close();if(flag=0)cout”要修改的课程在文件不存在！endl;system(pause);voidxkdelet()while(1)system(cls);cou

35、t*请选择类别查询BU除：*endl；cout*按学生学号请按1:*endl;cout*按课程编号请按2:*endl;cout*返回级界面请按3:*sn;while(sn3|sn1)cout选择的数据无效，请重新输入：sn;coutendl;studentstu20;coursek20;intflag=0;switch(sn)ifstreamin(e:situactionfile.txt);if(!in)cout打开学生信息文件失败！endl;return;intn=0;in.read(char*)&stun,sizeof(student);while(!in.eof()n+;in.read(

36、char*)&stun,sizeof(student);in.close();intno;cout请输入要删除白学生的学号no;for(inti=0;in;i+)if(no=stui.sno)coutstuiendl;cout是否要删除该学生的选课信息！ch;if(ch=Y|ch=y)for(intj=i;jn;j+)stuj=stuj+1;n-;flag=1;if(flag=0)cout”要修改的学生在文件不存在！endl;elseofstreamout(e:studenfile.txt);if(!out)cout打开学生信息文件失败！endl;return;for(intk=0;kn;k+

37、)out.seekp(k*sizeof(student),ios二beg);out.write(char*)&stuk,sizeof(student);out.close();break;ifstreamin(e:situactionfile.txt);if(!in)cout打开课程信息文件失败！endl;return;intn=0;in.read(char*)&kn,sizeof(course);while(!in.eof()n+;in.read(char*)&kn,sizeof(course);in.close();intno;cout请输入要删除白课程的编号no;for(inti=0;i

38、n;i+)if(no=o)coutkiendl;cout是否要删除该课程的信息！ch;if(ch=Y|ch=y)for(intj=i;jn;j+)kj=kj+1；n-；flag=1;if(flag=0)cout”要修改的课程在文件不存在！endl;elseofstreamout(e:coursefile.txt);if(!out)cout,打开课程信息文件失败！endl;return;for(inti=0;in;i+)out.seekp(i*sizeof(course),ios二beg);out.write(char*)&ki,sizeof(course);out.close();break;

39、system(pause);voidxkaccount()ifstreamofs(e:situactionfile.txt);if(!ofs)cout打开文件失败！;system(pause);return;inti=0;intsn=0,sscore=0;intcn=0,cscore=0;intsno;cout输入要统计的学生编号sno;intcno;cout输入要统计的课程编号cno;situactionsi;ofs.read(char*)&si,sizeof(situaction);while(!ofs.eof()if(si.sno=sno)sn+;sscore+=si.score;if(

40、o=cno)cn+;cscore+=si.score;ofs.read(char*)&si,sizeof(situaction);ofs.close();coutsno同学已经选课：sn门其平均成绩：(float)sscore/snendl;coutcno门课程已经选课：cn人该课程的平均成绩:(float)cscore/cnendl;ofs.close();system(pause);voidxkdisplay()ifstreamin(e:situactionfile.txt);if(!in)cout打开课程信息文件失败！endl;return;situactionsi;in.read(ch

41、ar*)&si,sizeof(situaction);while(!in.eof()coutsi;in.read(char*)&si,sizeof(situaction);in.close();system(pause);voidaddmenu()while(1)system(cls);cout*请选修要添力口信息的类别：*endl；cout*学生信息添加请按1:*endl;cout*课程信息添加请按2:*endcout*选课信息添加请按3:*endcout*返回主界面请按4:*sn;while(sn4|sn1)cout选择的数据无效，请重新输入：sn;coutendl;switch(sn)s

42、add();break;cadd();break;xkadd();break;return;system(pause);voidselectmenu()while(1)system(cls);cout*请选修要查询信息的类别:*endi；cout*学生信息查询请按1:*endi；cout*课程信息查询请按2:*endcout*选课信息查询请按3:*endcout*返回主界面请按4:*sn;while(sn4|sn1)cout选择的数据无效，请重新输入：sn;coutendl;switch(sn)sselect();break;cselect();break;xkselect();break;return;system(pause);voiddeletmenu()whi