摘要： -1 LessThanValue The first value is less than the secondvalue.0 EqualsValue The two values are equal.1 GreaterThanValuevar A : Single; B : Single... 阅读全文

摘要： uses Windows, Messages, SysUtils, Variants,Classes, Graphics, Controls, Forms, Dialogs, ComCtrls, StdCtrls, Grids;type TForm1 = class(TForm) ... 阅读全文