#include<iostream>#include<fstream>#include<string.h>#include<conio.h>usingnamespacestd;classStudent{public:charname[30];charId[30];floatCnum;//語文得分floatMnum;//數(shù)學(xué)課程得分floatEnum;//英語課程得分floatsum;//總分floataverage;//平均分Student*Next;voidInput(){cout<<"\t\t請輸入學(xué)生旳姓名：";cin>>name;cout<<"\t\t請輸入學(xué)生旳學(xué)號：";cin>>Id;cout<<"\t\t請輸入語文旳成績：";cin>>Cnum;cout<<"\t\t請輸入數(shù)學(xué)課程旳成績：";cin>>Mnum;cout<<"\t\t請輸入英語課程旳成績：";cin>>Enum;}voidReadFile(istream&in)voidShow(){cout<<"姓名:"<<name<<endl<<"學(xué)號:"<<Id<<endl<<"語文:"<<Cnum<<endl<<"數(shù)學(xué):"<<Mnum<<endl<<"外語："<<Enum<<endl<<"總成績:"<<sum<<endl<<"平均分:"<<average<<endl<<endl;}};classStudentmassage{public:Studentmassage();~Studentmassage();voidShowMenu();voidFind();voidSave();voidSwap(Student*,Student*);voidSort();//voidUnpass();intListCount();//voidAverage();voidDisplay(){for(Student*p=Head->Next;p!=End;p=p->Next)p->Show();cout<<"輸入任意字符！繼續(xù)……";getch();}voidAddItem(){cout<<"添加成功!"<<endl;cout<<"輸入任意字符！繼續(xù)……";getch();}private:Student*Head,*End;ifstreamin;ofstreamout;Student*FindItem(char*name){for(Student*p=Head;p->Next!=End;p=p->Next)if(!strcmp(p->Next->name,name))returnp;returnNULL;}Student*FindID(char*Id){for(Student*p=Head;p->Next!=End;p=p->Next)if(!strcmp(p->Next->Id,Id))returnp;returnNULL;}};Studentmassage::Studentmassage(){in.open("sort.txt");if(!in)cout<<"這是一種新系統(tǒng)，無學(xué)生信息。請先輸入。"<<endl;else{while(!in.eof()){if(End->name[0]=='\0')break;}in.close();cout<<"\t\t讀取學(xué)生信息成功!"<<endl;}}Studentmassage::~Studentmassage(){Save();for(Student*temp;Head->Next!=End;)deleteHead,End;}voidStudentmassage::ShowMenu(){cout<<"〓〓〓〓〓〓〓〓〓〓☆學(xué)生成績管理系統(tǒng)☆〓〓〓〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓★★★★★★★★★★★★★★★★★〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓〓〓★☆1.增長學(xué)生成績☆★〓〓〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓〓〓★☆2.顯示學(xué)生成績☆★〓〓〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓〓〓★☆3.排序記錄成績☆★〓〓〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓〓〓★☆4.查找學(xué)生成績☆★〓〓〓〓〓〓〓〓〓"<<endl;cout<<"〓〓〓〓〓〓〓〓〓★☆0.安全退出系統(tǒng)☆★〓〓〓〓〓〓〓〓〓"<<endl;cout<<"\n\t\t\n\t\t請選擇：";}voidStudentmassage::Find(){charname[20],Id[10];intx;Student*p=NULL;cout<<"\n\t\t*********************************\n";cout<<"t\t※按學(xué)生學(xué)號查找";cout<<"\n\t\t*********************************\n請選擇：";cin>>x;switch(x){case1:{cout<<"\t\t請輸入要查找旳學(xué)生旳學(xué)號：";cin>>Id;if(p=FindID(Id)){cout<<"輸入任意字符！繼續(xù)……";getch();}else{cout<<"\t\t沒有找到該學(xué)好旳學(xué)生！"<<'\n'<<endl;cout<<"輸入任意字符！繼續(xù)……";getch();}}break;}}//﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌﹌voidStudentmassage::Swap(Student*p1,Student*p2){Student*temp=newStudent;strcpy(temp->name,p1->name);strcpy(temp->Id,p1->Id);strcpy(p1->name,p2->name);strcpy(p1->Id,p2->Id);strcpy(p2->name,temp->name);strcpy(p2->Id,temp->Id);}intStudentmassage::ListCount(){if(!Head)return0;intn=0;for(Student*p=Head->Next;p!=End;p=p->Next)returnn;}voidStudentmassage::Sort(){cout<<"Sorting..."<<endl;intn=Studentmassage::ListCount();if(n<2)return;for(p=Head->Next;p!=End;p=p->Next)for(k=p->Next;k!=End;k=k->Next){if(p->sum>k->sum){Studentmassage::Swap(p,k);}}cout<<"排序完畢！"<<endl;getch();return;}voidStudentmassage::Save(){out.open("sort.txt");for(Student*p=Head->Next;p!=End;p=p->Next)out<<p->name<<"\t"<<p->Id<<"\t"<<p->Cnum<<"\t"<<p->Mnum<<"\t"<<p->Enum<<"\t"<<p->sum<<'\n';out.close();}intmain(){intx,i=0;boolquit=false;cout<<"\t\t§§§§§§§§§§§§§§§§§§§§§§§§§§"<<endl;for(i=0;i<3;i++)cout<<"\t\t◎\t\t\t\t\t\t◎"<<endl;cout<<"\t\t◎★★★★【歡迎進(jìn)入學(xué)生成績管理系統(tǒng)】★★★★◎"<<endl;for(i=0;i<3;i++)cout<<"\t\t◎\t\t\t\t\t\t◎"<<endl;cout<<"\t\t§§§§§§§§§§§§§§§§§§§§§§§§§§\n"<<endl;;StudentmassageGrade;cout<<"按任意鍵開始……";getch();while(!quit){system("c