//由于对fsream的不熟练，不会对指定部分的数据的修改，因而删除了一些功能，同时也导致了只能对消费额进行加减，但不能导入txt文件。Code:Uni-cardsystem.h#include<string>usingnamespacestd;classperson{public:voidbuildAdmin();voidbuildUndergraduate();voidbuildPostgraduate();protected:charname[20];charsex;charshape[10];chartel[12];};classconsumer:publicperson{protected:doublemoney;};classstudent:publicconsumer//定义学生类{protected:charnumber[20];intage;charnowClass[20];charbirthPlace[20];};classadmin:publicperson//定义管理员类{public:voidlogin();voidadminRegister();voidadminRegister2();private:characcount[12];charpassword[12];chartitle;};classundergraduate:publicstudent//定义本科生类{public:voidsearchUndergraduate();voiddisplayUndergraduate();voidinputUndergraduate_wrapper();voidinputUndergraduate();voidinputUndergraduate1();voidunderPayout(charstr[]);voidmonitorPower();voidoutputClassStudent(chars[]);voidunderSearchAll();private:charmonitor;};classpostgraduate:publicstudent//定义研究生类{public:voidsearchPostgraduate();voiddisplayPostgraduate();voidinputPostgraduate_wrapper();voidinputPostgraduate();voidinputPostgraduate1();voidpostPayout(charstr[]);voidpostSearchAll();protected:doublewage;};//不清楚教职工是否配备有一卡通，所以暂不考虑教职工类Uni-cardsystem.cpp#include<iostream>#include<cstring>#include<fstream>#include<string>#include<iomanip>#include%uni-cardsystem.husingnamespacestd;voidonUndergraduate();voidonPostgraduate();boolcomp(chars1[],chars2[]);voidinputStudent();voidadminOnLogin();//------------------------------------------------------------------//---------------------以下为person类中成员函数---------------------//------------------------------------------------------------------voidperson::buildAdmin()//建立Admin.txt{fstreamfile(Admin.txt,ios::out|ios::app);//打开文件，指针指向文件尾关闭文件file.close();//}Undergraduate.txt//建立voidperson::buildUndergraduate(){fstreamfile(Undergraduate.txt,ios::out|ios::app);//打开文件，指针指向文件尾关闭文件file.close();//}Postgraduate.txt//建立voidperson::buildPostgraduate(){fstreamfile(Postgraduate.txt,ios::out|ios::app);//打开文件，指针指向文件尾关闭文件file.close();//}//-----------------------------------------------------------------------------------------admin类中成员函数//--------------------以下为//------------------------------------------------------------------//管理员登录及验证voidadmin::login(){intensurance=0;characcount2[12],password2[12];adminad;cout<<endl<<endl;★★★★★管理员登录界面★★★★★<<:;请输入您的账号cout<<cin>>account2;;请输入您的密码：cout<<cin>>password2;fstreamfile(Admin.txt,ios::in);//打开文件，指针在文件头读取类信息//file.read((char*)ad,sizeof(ad));while(!file.eof())//判断文件指针是否到文件尾{if(comp(ad.account,account2)comp(ad.password,password2))//判断输入的字符是否与文件中的一样{cout<<登录成功！<<endl;ensurance=1;break;}如果指针没到文件尾，继续读取file.read((char*)ad,sizeof(ad));//}file.close();<<endl;您的账号或密码输入错误！if(ensurance==0)cout<<file.close();//关闭文件if(ensurance)adminOnLogin();}//管理员在文件外录入信息voidadmin::adminRegister(){adminadm;charchoose;intloop=1,loop1=1;cout<<endl<<endl;★★★★★管理员注册★★★★★<<while(loop1){loop1=0;;cin>>account;12输入您的账号（位以内）：cout<<fstreamfile(Admin.txt,ios::in);//打开文件，指针在文件头file.read((char*)adm,sizeof(adm));//读...