Сообщение от antikiler_
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модуль ввода данных
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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ObjectUnit, Math, StdCtrls, Grids, Buttons, ExtCtrls;
type
TForm1 = class(TForm)
StringGrid1: TStringGrid;
Memo1: TMemo;
Button1: TButton;
Button2: TButton;
OpenDialog1: TOpenDialog;
SaveDialog1: TSaveDialog;
Button3: TButton;
Edit1: TEdit;
BitBtn1: TBitBtn;
BitBtn2: TBitBtn;
RadioGroup1: TRadioGroup;
BitBtn3: TBitBtn;
BitBtn4: TBitBtn;
Label1: TLabel;
Label2: TLabel;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
procedure BitBtn2Click(Sender: TObject);
procedure BitBtn3Click(Sender: TObject);
procedure BitBtn4Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
MyBase_of_Students:TBase_of_Students;
Student:TStudent;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
begin
StringGrid1.Cells[0,0]:='Ф.И.О';
StringGrid1.Cells[1,0]:='Матем';
StringGrid1.Cells[2,0]:='Физика';
StringGrid1.Cells[3,0]:='Русский';
StringGrid1.Cells[4,0]:='Ср. балл';
StringGrid1.Cells[0,1]:='Никимченко Иван';
StringGrid1.Cells[1,1]:='8';
StringGrid1.Cells[2,1]:='9';
StringGrid1.Cells[3,1]:='8';
MyBase_of_Students:=TBase_of_Students.Create();
Memo1.Clear;
RadioGroup1.ItemIndex:=1;
end;
procedure TForm1.Button1Click(Sender: TObject); //Add new record to file
var
Fl:TextFile;
TFileName:String;
begin
if SaveDialog1.Execute then
begin
TFileName:=SaveDialog1.FileName;
AssignFile (Fl,TFileName);
if FileExists('Fl') then
begin
Append(Fl);
end
else Rewrite(Fl);
end
else exit;
MyBase_of_Students.AddNewRecordToFile(Fl,Memo1);
end;
procedure TForm1.Button2Click(Sender: TObject); //Add new element ot array
var
M,F,R,i:Integer;
K_Name:String;
AvgM:Extended;
begin
K_Name:=StringGrid1.Cells[0,1];
While ((Length(K_Name)>0) AND (Copy(K_Name,1,1)=' ')) do Delete(K_Name,1,1);
While ((Length(K_Name)>0) AND (Copy(K_Name,length(K_Name),1)=' ')) do Delete(K_Name,Length(K_Name),1);
While ((Length(K_Name)>0) AND (Pos(' ',K_Name)>1)) do Delete(K_Name,Pos(' ',K_Name),1);
M:=StrToInt(StringGrid1.Cells[1,1]);
F:=StrToInt(StringGrid1.Cells[2,1]);
R:=StrToInt(StringGrid1.Cells[3,1]);
AvgM:=RoundTo((M+F+R)/3,-1);
MyBase_of_Students.Add(TStudent.Create(K_Name,M,F,R,AvgM),Memo1);
for i:=0 to 3 do
begin
StringGrid1.Cells[i,1]:='';
end;
end;
procedure TForm1.Button3Click(Sender: TObject); //Add data from file
var
Flr:TextFile;
TFileName:String;
St:String;
K_Name:String;
M,F,R,i:Integer;
AvgM:Extended;
begin
if OpenDialog1.Execute then
begin
TFileName:=OpenDialog1.FileName;
AssignFile(Flr,TFileName);
try
Reset(Flr);
except
exit
end;
end
else exit;
While not(EOF(Flr)) do
begin
ReadLn(Flr,St);
While ((Length(St)>0) AND (Copy(St,1,1)=' ')) do Delete(St,1,1);
While ((Length(St)>0) AND (Copy(St,length(St),1)=' ')) do Delete(St,Length(St),1);
While ((Length(St)>0) AND (Pos(' ',St)>1)) do Delete(St,Pos(' ',St),1);
i:=1;
K_Name:='';
While not(St[i] in ['0','1','2','3','4','5','6','7','8','9']) do
begin
K_Name:=K_Name+St[i];
inc(i);
end;
While ((Length(K_Name)>0) AND (Copy(K_Name,length(K_Name),1)=' ')) do Delete(K_Name,Length(K_Name),1);
M:=StrToInt(St[i]);
F:=StrToInt(St[i+2]);
R:=StrToInt(St[i+4]);
AvgM:=StrToFloat(St[i+6]);
MyBase_of_Students.ReadFileToArray(TStudent.Create(K_Name,M,F,R,AvgM),Memo1)
end;
end;
procedure TForm1.BitBtn1Click(Sender: TObject);
var
K_Name:String;
begin
K_Name:=Edit1.Text;
While ((Length(K_Name)>0) AND (Copy(K_Name,1,1)=' ')) do Delete(K_Name,1,1);
While ((Length(K_Name)>0) AND (Copy(K_Name,length(K_Name),1)=' ')) do Delete(K_Name,Length(K_Name),1);
While ((Length(K_Name)>0) AND (Pos(' ',K_Name)>1)) do Delete(K_Name,Pos(' ',K_Name),1);
MyBase_of_Students.LinearSearch(K_Name);
end;
procedure TForm1.BitBtn2Click(Sender: TObject);
var
K_Name:String;
begin
K_Name:=Edit1.Text;
While ((Length(K_Name)>0) AND (Copy(K_Name,1,1)=' ')) do Delete(K_Name,1,1);
While ((Length(K_Name)>0) AND (Copy(K_Name,length(K_Name),1)=' ')) do Delete(K_Name,Length(K_Name),1);
While ((Length(K_Name)>0) AND (Pos(' ',K_Name)>1)) do Delete(K_Name,Pos(' ',K_Name),1);
MyBase_of_Students.DeleteDependingOnKey(K_Name);
end;
procedure TForm1.BitBtn3Click(Sender: TObject);
begin
Memo1.Clear;
case RadioGroup1.ItemIndex of
0: MyBase_of_Students.QuickSort(Memo1);
1: MyBase_of_Students.SlipSort(Memo1);
end;
end;
procedure TForm1.BitBtn4Click(Sender: TObject);
var
TotalAvgMark:Extended;
begin
TotalAvgMark:=Roundto(MyBase_of_Students.AvgMarkDisplay(),-1);
Label2.Caption:=(FloatToStrF(TotalAvgMark,ffFixed,1,1));
case RadioGroup1.ItemIndex of
0: MyBase_of_Students.QuickSort(Memo1);
1: MyBase_of_Students.SlipSort(Memo1);
end;
MyBase_of_Students.AvgMarkSort(TotalAvgMark,Memo1);
end;
end. |
|
модуль объекта, процедура с ошибкой ReadFileToArray
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| unit ObjectUnit;
interface
uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Math, StdCtrls, Grids;
type
TStudent=class
KEY_Name:String;
Math,Phys,Rus:integer;
AvgMark:Extended;
Constructor Create (K_Name:String; M,F,R:Integer; AvgM:Extended);
end;
type
DynBase=array [1..1] of TStudent;
PointDynBase=^DynBase;
TBase_of_Students=class
BasePrim, BaseSec: PointDynBase;
Count:Integer;
szof:word;
Procedure Add(S:TStudent; Memo1:TMemo);
Procedure ReadFirstElemFromBasePrim (elem:TStudent);
Procedure AddNewRecordToFile (var Base:TextFile; Memo1:Tmemo);
Procedure ReadFileToArray (S:TStudent; Memo1:TMemo);
Procedure LinearSearch (K_Name:String);
Procedure SlipSort (Memo1:TMemo);
Procedure QuickSort (Memo1:TMemo);
Procedure DeleteDependingOnKey (K_Name:String);
Function AvgMarkDisplay():Extended;
Procedure AvgMarkSort(TotalAvgMark:Extended; Memo1:TMemo);
Constructor Create();
end;
//---------------------------------------
implementation
Constructor TStudent.Create (K_Name:String; M,F,R:Integer; AvgM:Extended);
begin
KEY_Name:=K_Name;
Math:=M;
Phys:=F;
Rus:=R;
AvgMark:=AvgM;
end;
Procedure TBase_of_Students.Add (S:TStudent; Memo1:TMemo);
var
i:integer;
begin
GetMem(BaseSec,(Count+1)*szof);
BaseSec[Count]:=S;
if Count>0 then
begin
Memo1.Lines.Add(BaseSec[Count].KEY_Name+' '+IntToStr(BaseSec[Count].Math)+' '+IntToStr(BaseSec[Count].Phys)+' '+IntToStr(BaseSec[Count].Rus)+' '+FloatToStr(BaseSec[Count].AvgMark));
for i:=1 to Count do
BaseSec^[i]:=BasePrim^[i];
FreeMem(BasePrim,szof*Count);
end;
BasePrim:=BaseSec;
Inc(Count);
end;
Procedure TBase_of_Students.ReadFirstElemFromBasePrim (elem:TStudent); //Storing in TStudent
var
i:integer;
begin
if Count>0 then
begin
TStudent.Create(BasePrim[1].KEY_Name,BasePrim[1].Math, BasePrim[1].Phys, BasePrim[1].Rus, BasePrim[1].AvgMark);
Dec(Count);
if Count>0 then
begin
GetMem(BaseSec,Count*szof);
for i:=1 to Count do
BaseSec^[i]:=BasePrim^[i+1];
end
else BaseSec:=Nil;
FreeMem(BasePrim,(Count+1)*szof);
BasePrim:=BaseSec;
end;
end;
Procedure TBase_of_Students.AddNewRecordToFile(var Base:TextFile; Memo1:Tmemo);
begin
Memo1.Lines.SaveToFile('Base'+'.txt');
CloseFile(Base);
end;
Procedure TBase_of_Students.ReadFileToArray(S:TStudent; Memo1:TMemo);
var
i:integer;
begin
GetMem(BaseSec,(Count+1)*szof);
BaseSec[Count+1].KEY_Name:=S.KEY_Name;
BaseSec[Count+1].Math:=S.Math;
BaseSec[Count+1].Phys:=S.Phys;
BaseSec[Count+1].Rus:=S.Rus;
BaseSec[Count+1].AvgMark:=S.AvgMark;
Memo1.Lines.Add(BaseSec[Count+1].KEY_Name+' '+IntToStr(BaseSec[Count+1].Math)+' '+IntToStr(BaseSec[Count+1].Phys)+' '+IntToStr(BaseSec[Count+1].Rus)+' '+FloatToStr(BaseSec[Count+1].AvgMark));
if (Count>0) then
begin
for i:=1 to Count do
BaseSec[i].KEY_Name:=BasePrim[i].KEY_Name;
BaseSec[i].Math:=BasePrim[i].Math;
BaseSec[i].Phys:=BasePrim[i].Phys;
BaseSec[i].Rus:=BasePrim[i].Rus;
BaseSec[i].AvgMark:=BasePrim[i].AvgMark;
FreeMem(BasePrim,szof*Count);
end;
BasePrim:=BaseSec;
Inc(Count);
end;
Procedure TBase_of_Students.LinearSearch(K_Name:String);
var
i,ne:Integer;
begin
i:=1;
ne:=Count+1;
While (i<ne) AND (BasePrim[i].KEY_Name<>K_Name) do
inc(i);
if i=ne then ShowMessage('Student not found')
else ShowMessage(BasePrim[i].KEY_Name+' '+IntToStr(BasePrim[i].Math)+' '+IntToStr(BasePrim[i].Phys)+' '+IntToStr(BasePrim[i].Rus)+' '+FloatToStr(BasePrim[i].AvgMark))
end;
Procedure TBase_of_Students.SlipSort(Memo1:TMemo);
Procedure SlipRec(L,m,R:word);
Var AssisArr: TBase_of_Students;
i,j,k:integer;
begin
i:=L; k:=0; j:=m+1;
AssisArr:=TBase_of_Students.Create;
GetMem(AssisArr.BasePrim,Count*szof);
while (i<=m) and (j<=R) do
if BasePrim[i].AvgMark<BasePrim[j].AvgMark then
begin
AssisArr.Add(TStudent.Create(BasePrim[i].KEY_Name,BasePrim[i].Math,BasePrim[i].Phys,BasePrim[i].Rus,BasePrim[i].AvgMark),Memo1);
Inc(i);
Inc(k);
end
else
begin
AssisArr.Add(TStudent.Create(BasePrim[j].KEY_Name,BasePrim[j].Math,BasePrim[j].Phys,BasePrim[j].Rus,BasePrim[j].AvgMark),Memo1);
Inc(j);
Inc(k);
end;
while i<=m do
begin
AssisArr.Add(TStudent.Create(BasePrim[i].KEY_Name,BasePrim[i].Math,BasePrim[i].Phys,BasePrim[i].Rus,BasePrim[i].AvgMark),Memo1);
Inc(i);
inc(k)
end;
while j<=R do
begin
AssisArr.Add(TStudent.Create(BasePrim[j].KEY_Name,BasePrim[j].Math,BasePrim[j].Phys,BasePrim[j].Rus,BasePrim[j].AvgMark),Memo1);
Inc(j);
Inc(k)
end;
k:=0;
for i:=L to R do
begin
Inc(k);
BasePrim[i]:=AssisArr.BasePrim[k];
{BasePrim[i].KEY_Name:=AssisArr.Base[k].KEY_Name;
BasePrim[i].Math:=AssisArr.Base[k].Math;
BasePrim[i].Phys:=AssisArr.Base[k].Phys;
BasePrim[i].Rus:=AssisArr.Base[k].Rus;
BasePrim[i].AvgMark:=AssisArr.Base[k].AvgMark;}
end;
FreeMem(AssisArr.BasePrim,Count*szof)
end;
Procedure SlipSortRec(L,R:integer);
var
m:integer;
begin
if L<>R then
begin
m:=(L+R) div 2;
SlipSortRec(L,m);
SlipSortRec(m+1,R);
SlipRec(L,m,R)
end;
end;
var
i,c:integer;
begin
SlipSortRec(1,Count);
Memo1.Clear;
c:=Count;
for i:=c downto 1 do
Memo1.Lines.Add(BasePrim[i].KEY_Name+' '+IntToStr(BasePrim[i].Math)+' '+IntToStr(BasePrim[i].Phys)+' '+IntToStr(BasePrim[i].Rus)+' '+FloatToStr(BasePrim[i].AvgMark))
end;
Procedure TBase_of_Students.QuickSort(Memo1:TMemo);
Procedure QuickSortRec(L,R:Integer);
var
i,j,numb:integer;
x,assesObj:TStudent;
begin
i:=L;
j:=R;
numb:=L+Random(R-L+1);
x:=TStudent.Create(BasePrim[numb].KEY_Name, BasePrim[numb].Math, BasePrim[numb].Phys, BasePrim[numb].Rus, BasePrim[numb].AvgMark);
Repeat
While BasePrim[i].AvgMark<x.AvgMark do inc(i);
While BasePrim[j].AvgMark>x.AvgMark do dec(j);
if i<=j then
begin
assesObj:=TStudent.Create(BasePrim[i].KEY_Name,BasePrim[i].Math,BasePrim[i].Phys, BasePrim[i].Rus, BasePrim[i].AvgMark);
BasePrim[i].KEY_Name:=BasePrim[j].KEY_Name;
BasePrim[i].Math:=BasePrim[j].Math;
BasePrim[i].Phys:=BasePrim[j].Phys;
BasePrim[i].Rus:=BasePrim[j].Rus;
BasePrim[i].AvgMark:=BasePrim[j].AvgMark;
BasePrim[j].KEY_Name:=assesObj.KEY_Name;
BasePrim[j].Math:=assesObj.Math;
BasePrim[j].Phys:=assesObj.Phys;
BasePrim[j].Rus:=assesObj.Rus;
BasePrim[j].AvgMark:=assesObj.AvgMark;
assesObj.Destroy;
inc(i);
dec(j);
end;
until i>j;
if L<j then QuickSortRec(L,j);
if i<R then QuickSortRec(i,R);
end;
var
i,c:integer;
begin
QuickSortRec(1,Count);
Memo1.Clear;
c:=Count;
for i:=c downto 1 do
Memo1.Lines.Add(BasePrim[i].KEY_Name+' '+IntToStr(BasePrim[i].Math)+' '+IntToStr(BasePrim[i].Phys)+' '+IntToStr(BasePrim[i].Rus)+' '+FloatToStr(BasePrim[i].AvgMark))
end;
Procedure TBase_of_Students.DeleteDependingOnKey(K_Name:String);
var
i,ne:integer;
begin
i:=1;
ne:=Count+1;
While (i<ne) AND (BasePrim[i].KEY_Name<>K_Name) do
inc(i);
if i=ne then ShowMessage('Student not found')
else
begin
BasePrim[i].KEY_Name:='0';
ShowMessage('Info was successfully deleted');
end;
end;
Function TBase_of_Students.AvgMarkDisplay():Extended;
var
i:integer;
sum:extended;
begin
sum:=0;
for i:=1 to Count do
sum:=sum+BasePrim[i].AvgMark;
Result:=sum/Count;
end;
Procedure TBase_of_Students.AvgMarkSort(TotalAvgMark:Extended; Memo1:TMemo);
var
i:integer;
count2:integer;
begin
Memo1.Clear;
count2:=1;
while BasePrim[count2].AvgMark<=TotalAvgMark do
inc(count2);
for i:=(Count) downto (Count-count2+2) do
Memo1.Lines.Add(BasePrim[i].KEY_Name+' '+IntToStr(BasePrim[i].Math)+' '+IntToStr(BasePrim[i].Phys)+' '+IntToStr(BasePrim[i].Rus)+' '+FloatToStr(BasePrim[i].AvgMark));
end;
Constructor TBase_of_Students.Create();
begin
TStudent.Create('',0,0,0,0);
szof:=sizeof(TStudent);
Count:=0;
BasePrim:=Nil;
end;
begin
end. |
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Спасибо за помощь
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Сообщение от Make_it_Snow
