下面这段脚本语言是什么意思，请翻译一下？ Function Show(m) If (Myform.Expression.Value = "" AND InStr(". + - * / ",m)) Then Myform.Expression.Value = "" ElseIf (InStr("+ - * / . ",Right(Myform.Expression.Value,1)) And InStr("+ - * / ",m)) Then ElseIf (m = ".") Then If (InStr("+ - * / . ",Right(Myform.Expression.Value,1))) Then ElseIf ((InstrRev(Myform.Expression.Value,".") > InstrRev(Myform.Expression.Value,"+")) And (InstrRev(Myform.Expression.Value,".") > InstrRev(Myform.Expression.Value,"-")) And (InstrRev(Myform.Expression.Value,".") > InstrRev(Myform.Expression.Value,"*")) And (InstrRev(Myform.Expression.Value,".") > InstrRev(Myform.Expression.Value,"/"))) Then Else Myform.Expression.Value = Myform.Expression.Value + m End If Else Myform.Expression.Value = Myform.Expression.Value + m END If End Function
