6

我想我可以避免在这里重新发明轮子。

我需要一个 Python 脚本来将数字转换为单词以打印支票。

例如1,10,543，应该提供输出为One lac ten thousand five hundred and forty three.

4

2 回答 2

7

编写了具有以下功能的自定义转换器：

  • Number to Word 转换器，可用于从 0 到 999999999 的数字，适合印度次大陆，即 lacs 和 crore（范围足够大，可以容纳许多用例）
  • 包括派萨支持最多 2 位小数（四舍五入）
  • 灵感来自http://www.blog.pythonlibrary.org/2010/10/21/python-converting-numbers-to-words/上的帖子

  • 分析信息：此脚本在 0.458 秒的执行时间方面的性能较低，而上述脚本的 0.237 秒恰好运行 10000 次。

    class Number2Words(object):

        def __init__(self):
            '''Initialise the class with useful data'''

            self.wordsDict = {1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five', 6: 'six', 7: 'seven',
                              8: 'eight', 9: 'nine', 10: 'ten', 11: 'eleven', 12: 'twelve', 13: 'thirteen',
                              14: 'fourteen', 15: 'fifteen', 16: 'sixteen', 17: 'seventeen',
                              18: 'eighteen', 19: 'nineteen', 20: 'twenty', 30: 'thirty', 40: 'forty',
                              50: 'fifty', 60: 'sixty', 70: 'seventy', 80: 'eighty', 90: 'ninty' }

            self.powerNameList = ['thousand', 'lac', 'crore']


        def convertNumberToWords(self, number):

            # Check if there is decimal in the number. If Yes process them as paisa part.
            formString = str(number)
            if formString.find('.') != -1:
                withoutDecimal, decimalPart = formString.split('.')

                paisaPart =  str(round(float(formString), 2)).split('.')[1]
                inPaisa = self._formulateDoubleDigitWords(paisaPart)

                formString, formNumber = str(withoutDecimal), int(withoutDecimal)
            else:
                # Process the number part without decimal separately
                formNumber = int(number)
                inPaisa = None

            if not formNumber:
                return 'zero'

            self._validateNumber(formString, formNumber)

            inRupees = self._convertNumberToWords(formString)

            if inPaisa:
                return 'Rs. %s and %s paisa' % (inRupees.title(), inPaisa.title())
            else:
                return 'Rs. %s' % inRupees.title()


        def _validateNumber(self, formString, formNumber):

            assert formString.isdigit()

            # Developed to provide words upto 999999999
            if formNumber > 999999999 or formNumber < 0:
                raise AssertionError('Out Of range')


        def _convertNumberToWords(self, formString):

            MSBs, hundredthPlace, teens = self._getGroupOfNumbers(formString)

            wordsList = self._convertGroupsToWords(MSBs, hundredthPlace, teens)

            return ' '.join(wordsList)


        def _getGroupOfNumbers(self, formString):

            hundredthPlace, teens = formString[-3:-2], formString[-2:]

            msbUnformattedList = list(formString[:-3])

            #---------------------------------------------------------------------#

            MSBs = []
            tempstr = ''
            for num in msbUnformattedList[::-1]:
                tempstr = '%s%s' % (num, tempstr)
                if len(tempstr) == 2:
                    MSBs.insert(0, tempstr)
                    tempstr = ''
            if tempstr:
                MSBs.insert(0, tempstr)

            #---------------------------------------------------------------------#

            return MSBs, hundredthPlace, teens


        def _convertGroupsToWords(self, MSBs, hundredthPlace, teens):

            wordList = []

            #---------------------------------------------------------------------#
            if teens:
                teens = int(teens)
                tensUnitsInWords = self._formulateDoubleDigitWords(teens)
                if tensUnitsInWords:
                    wordList.insert(0, tensUnitsInWords)

            #---------------------------------------------------------------------#
            if hundredthPlace:
                hundredthPlace = int(hundredthPlace)
                if not hundredthPlace:
                    # Might be zero. Ignore.
                    pass
                else:
                    hundredsInWords = '%s hundred' % self.wordsDict[hundredthPlace]
                    wordList.insert(0, hundredsInWords)

            #---------------------------------------------------------------------#
            if MSBs:
                MSBs.reverse()

                for idx, item in enumerate(MSBs):
                    inWords = self._formulateDoubleDigitWords(int(item))
                    if inWords:
                        inWordsWithDenomination = '%s %s' % (inWords, self.powerNameList[idx])
                        wordList.insert(0, inWordsWithDenomination)

            #---------------------------------------------------------------------#
            return wordList


        def _formulateDoubleDigitWords(self, doubleDigit):

            if not int(doubleDigit):
                # Might be zero. Ignore.
                return None
            elif self.wordsDict.has_key(int(doubleDigit)):
                # Global dict has the key for this number
                tensInWords = self.wordsDict[int(doubleDigit)]
                return tensInWords
            else:
                doubleDigitStr = str(doubleDigit)
                tens, units = int(doubleDigitStr[0])*10, int(doubleDigitStr[1])
                tensUnitsInWords = '%s %s' % (self.wordsDict[tens], self.wordsDict[units])
                return tensUnitsInWords


if __name__ == '__main__':

    wGenerator = Number2Words()
    print wGenerator.convertNumberToWords(100000)
于 2012-12-18T11:58:20.300 回答
3

您可以使用 python 库num2words ( pip install num2words)：

例子：

from num2words import num2words
num2words(110543, to='cardinal', lang='en_IN')

输出：

'one lakh, ten thousand, five hundred and forty-three'
于 2018-02-04T07:52:25.013 回答