#!/usr/bin/env python

#__*__ coding: utf-8 __*__

import re

import linecache

def fileParse():

    inputfile = input('Input SourcFile:') ##输入源文件，如A.txt

    fp = open(inputfile, 'r')

    number =[]

    lineNumber = 1

    keyword = input('Slice Keyword:') ##输入你要切分的关键字

    outfilename = input('Outfilename:')##输出文件名，如out.txt则写out即可，后续输出的文件是out0.txt,out1.txt...

    for eachLine in fp:

        m = re.search(keyword, eachLine) ##查询关键字

        if m is not None:

           number.append(lineNumber) #将关键字的行号记录在number中

        lineNumber = lineNumber + 1

    size = int(len(number))

    for i in range(0,size-1):

        start = number[i]

        end = number[i+1]

        destLines = linecache.getlines(inputfile)[start+1:end-1] #将行号为start+1到end-1的文件内容截取出来

        fp_w = open(outfilename + str(i)+'.txt','w') #将截取出的内容保存在输出文件中

        for key in destLines:

            fp_w.write(key)

        fp_w.close()

if __name__ == "__main__":

    fileParse()