cout<<"教师姓名："<<tname<<endl;
cout<<"课程名称："<<tlesson<<endl;
cout<<"评教分数："<<grade<<endl;
} /--------------------------新建类-----------------------------/ class System {public: System(){}; ~System(){}; void add(); int lname(char x); void find(); void change(); void dele(); void menu(); void display(); void save(); void read(); }; vector<Lesson<char,char,double> >v; /--------------------------输入函数-----------------------------/ template<typename T1,typename T2,typename T3> void Lesson<T1,T2,T3>::input() { cout<<"请输入教师姓名："; cin>>tname; cout<<"请输入课程名称："; cin>>tlesson; cout<<"请输入打分（0-100）："; cin>>grade; try{ //异常处理 if(grade<0||grade>100) throw 0; else cout<<endl;} catch(int) {cout<<"输入数据错误，请重新输入";} cout<<endl; } /--------------------------读取函数-----------------------------/ void System::read() { Lesson<char,char,double> ch; ifstream infile("sys.txt",ios::binary); if(!infile){ cout<<"文件打不开"<<endl; } infile.read((char)&ch,sizeof(ch)); while(!infile.eof()) { v.push_back(ch); infile.read((char*)&ch,sizeof(ch));
cout<<"教师姓名："<<ch.tname<<endl;
cout<<"课程名称："<<ch.tlesson<<endl;
cout<<"评教分数："<<ch.grade<<endl;
cout<<endl;
}
infile.close();
cout<<"读取成功"<<endl;
getch();
} /--------------------------保存函数-----------------------------/ void System::save() { ofstream outfile("sys.txt",ios::binary); Lesson<char,char,double>t; vector<Lesson<char,char,double> >::iterator ap; if(!outfile) cout<<"文件不能被打开"<<endl; else { for(ap=v.begin();ap!=v.end();ap++) { t=ap; outfile.write((char)&t,sizeof(t)); cout<<"保存成功"<<endl; } outfile.close(); getch(); }
} void System::display() { for(int i=0;i<n;i++) {v[i].show();} cout<<"输入任意字符继续"; getch(); } /--------------------------主菜单-----------------------------/ void System::menu() { cout<<"--------------评 教 管 理 系 统-------------"<<endl; cout<<"--------------2. 增加评教信息--------------"<<endl; cout<<"--------------4. 查找评教信息--------------"<<endl; cout<<"--------------6. 删除评教信息--------------"<<endl; cout<<"--------------8. 读取相关数据--------------"<<endl; cout<<"--------------$9. 退出评教系统--------------"<<endl; } /--------------------------添加数据-----------------------------/ void System::add() { string h="y"; do{ Lesson<char,char,double>l; l.input(); n++; v.push_back(l); cout<<"是否继续添加（y/n）？"; cin>>h; }while(h=="y"); cout<<"添加成功！输入任意字符继续"; getch(); } /--------------------------查找课程-----------------------------/ int System::lname(char *x) { int i; for(i=0;i<n;i++) { if(strcmp(v[i].tlesson,x)==0) { return i;} } return -1; }
void System::find() { char x[20]; int a; cout<<"请输入要查找的课程名称："; cin>>x; a=lname(x); if(a!=-1) v[a].show(); else cout<<"没有找到相关课程信息"<<endl; cout<<"输入任意字符继续"; getch(); } /--------------------------更改数据-----------------------------/ void System::change() { char b[20]; int k; cout<<"请输入需要修改的课程名称："; cin>>b; k=lname(b); if(k!=-1){ cout<<"已找到，请输入新的信息："<<endl; v[k].input();} cout<<"输入任意字符继续："; getch(); } /--------------------------删除数据-----------------------------/ void System::dele() { char c[20]; int d; cout<<"请输入要删除的课程名称："; cin>>c; d=lname(c); if(d!=-1) {for(;d<n-1;d++) {strcpy(v[d].tname,v[d+1].tname); strcpy(v[d].tlesson,v[d+1].tlesson); v[d].grade==v[d+1].grade; } n--; } else cout<<"输入错误，找不到该课程信息"<<endl; cout<<"输入任意字符继续"; getch(); } /--------------------------主函数-----------------------------/ int main() { Student x; System y; int a; string ss="y"; do{ system("cls"); cout<<"====================欢迎进入评教管理系统！===================="<<endl; y.menu() ; cout<<"请输入相应阿拉伯数字："; cin>>a; switch(a) { case 1:x.input();break; case 2:y.add();break; case 3:y.change();break; case 4:y.find();break; case 5:y.display();break; case 6:y.dele();break; case 7:y.save();break; case 8:y.read();break; case 9:ss="n";break; } }while(ss=="y"); return 0; }
