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delphi 字符串显示后5位
function EndStr(const S: String; const Count: Integer): String;
var
I: Integer;
Index: Integer;
begin
Result := '';
for I := 1 to Count do
begin
Index := Length(S)-I+1;
if Index > 0 then
Result := S[Index] + Result;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
Caption:=EndStr('12345678910',5); //结果78910
end;