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" alt="" />

procedure TForm12.btn1Click(Sender: TObject);
var
wokao: string;
begin
wokao := 'abcde_fg';
ShowMessage(IntToStr(wokao.IndexOf('_')));//
ShowMessage(wokao.Substring(,wokao.IndexOf('_')));//abcde
end;

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