(*// 标题:无限进制转换 说明:使用于数学领域进制之间相互转换 设计:Zswang 日期:2002-01-24 支持:wjhu111@21cn.com //*) ///////Begin Source const cScaleChar = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'; function IntPower(Base, Exponent: Integer): Integer; { 返回Base的Exponent次方 } var I: Integer; begin Result := 1; for I := 1 to Exponent do Result := Result * Base; end; { IntPower } function IntToDigit(mNumber: Integer; mScale: Byte; mLength: Integer = 0): string; { 返回整数的进制表示;mScale指定多少进制;mLength指定长度,长度不足时向前补0 } var I, J: Integer; begin Result := '; I := mNumber; while (I >= mScale) and (mScale > 1) do begin J := I mod mScale; I := I div mScale; Result := cScaleChar[J + 1] + Result; end; Result := cScaleChar[I + 1] + Result; for I := 1 to mLength - Length(Result) do Result := '0' + Result; end; { IntToDigit }
function DigitToInt(mDigit: string; mScale: Byte): Integer; { 返回进制表示转换成整数;mScale指定多少进制 } var I: Byte; L: Integer; begin Result := 0; mDigit := UpperCase(mDigit); L := Length(mDigit); for I := 1 to L do Result := Result + (Pos(mDigit[L - I + 1], cScaleChar) - 1) * IntPower(mScale, I - 1); end; { DigitToInt } ///////End Source //Demo //将整数16转成16进制 |? | ShowMessage(IntToDigit(StrToIntDef('16', 0), 16)); //将十六进制的10转成整数 ShowMessage(IntToStr(DigitToInt('16', 10)));