delphi 取出字符串中首两位的数字

Question

delphi 取出字符串中首两位的数字 如RB30 与 L15G3 与 LX20G3K0 取出 30 15 20

Answer 1

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Edit2: TEdit;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

Function GetInt2(S:string):String;
var
  S1,S2:String;
  i,j:integer;
begin
  result:='';
  j:=1;
  for i:=0 to length(S) do
  begin
    if (J=2) and ((Ord(S[i])>=48) and (Ord(S[i])<=57)) then
    begin
      S2:=S[i];
      j:=0;
    end;
    if (J=1) and ((Ord(S[i])>=48) and (Ord(S[i])<=57)) then
    begin
      S1:=S[i];
      j:=2;
    end;
  end;
  if J=0 then result:=S1+S2;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  edit2.Text:=GetInt2(Edit1.text);
end;

end.