python根据开头和结尾字符串获取中间字符串的方法

1

2

3

4

5

6

7

8

def GetMiddleStr(content,startStr,endStr):

  startIndex = content.index(startStr)

  if startIndex>=0:

    startIndex += len(startStr)

  endIndex = content.index(endStr)

  return content[startIndex:endIndex]

if __name__=='__main__':

  print(GetMiddleStr('<div class="a">jb51.net</div>','<div class="a">','</div>'))