Python 将阿拉伯数字转换为罗马数字，python阿拉伯,[Python]代码de

Python 将阿拉伯数字转换为罗马数字，python阿拉伯,[Python]代码de

[Python]代码

def numToRomanNum(Num): """digital will be converted into Roman numerals,Ex: numToRomanNum(3999)"""     if Num < 1 or Num > 3999:         print 'The Num must in 1-3999'     else:         NumDic = {             '1':('I','IV','V','IX'),             '2':('X','XL','L','XC'),             '3':('C','CD','D','CM'),             '4':('M')             }         items = sorted(NumDic.items())         retstr = ''         for item in items:             str = ''             (Num,modNum) = divmod(Num,10)             if modNum != 0:                 if item[0] != '4':                     if modNum <= 3:                         while modNum > 0:                             str = str.join(['',item[1][0]])                             modNum -= 1                     elif modNum < 5:                         str = item[1][1]                     elif modNum == 5:                         str = item[1][2]                     elif modNum < 9:                         str = item[1][2]                         while modNum > 5:                             str = str.join(['',item[1][0]])                             modNum -= 1                     else:                         str = item[1][3]                 else:                     while modNum > 0:                         str = str.join(['',item[1][0]])                         modNum -= 1                 retstr = str.join(['',retstr])         return retstr