求一个元素在集合中的序号,
例如:1、Ord(A)=62;
2、
uses Dialogs;
type
Colors = (RED,BLUE,GREEN);
var
S: string;
begin
S := 'BLUE has an ordinal value of ' + IntToStr(Ord(BLUE)) + #13#10;
S := S + 'The ASCII code for "c" is ' + IntToStr(Ord('c')) + ' decimal';
MessageDlg(S, mtInformation, [mbOk], 0);
end;