试试这样:unit Unit1;interfaceuses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;type
TForm1 = class(TForm)
readbutton: TButton;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure readbuttonClick(Sender: TObject);
private
{ Private declarations }
FReadText:Tstrings;
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.DFM}procedure TForm1.FormCreate(Sender: TObject);
begin
FReadText := TStringList.Create;
end;procedure TForm1.FormDestroy(Sender: TObject);
begin
FreeAndNil(FReadText);
end;procedure TForm1.readbuttonClick(Sender: TObject);
var
c:char;
n,m:integer;
begin
FReadText.LoadFromFile('atext.txt'); //atext.txt是你要读的文本文件名
n := 1; //n行
m := 2; //m列 try
c := FReadText[n][m];
except
end;end;end.
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;type
TForm1 = class(TForm)
readbutton: TButton;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure readbuttonClick(Sender: TObject);
private
{ Private declarations }
FReadText:Tstrings;
public
{ Public declarations }
end;var
Form1: TForm1;implementation{$R *.DFM}procedure TForm1.FormCreate(Sender: TObject);
begin
FReadText := TStringList.Create;
end;procedure TForm1.FormDestroy(Sender: TObject);
begin
FreeAndNil(FReadText);
end;procedure TForm1.readbuttonClick(Sender: TObject);
var
c:char;
n,m:integer;
begin
FReadText.LoadFromFile('atext.txt'); //atext.txt是你要读的文本文件名
n := 1; //n行
m := 2; //m列 try
c := FReadText[n][m];
except
end;end;end.
MEMO.LINES[I]属性可读出第几行,将其赋给一个字符串变量再进一步判断, 不就可以实现了吗!
var
Lines: TStringList;
begin
Lines := TStringList.Create;
Lines.Text := AText;
Result := Lines.Strings[n - 1][m];
Lines.Free;
end;