• 设置python版本：

method1： set python3

method2： set path = ( /xxx/xx_Tools/xxx_UTILITIES/python/Python-3.6.4 /xxx/xx_Tools/xxx_UTILITIES/python/Python-3.6.4/lib $path )

• 查看python版本： which python

• coding practice：

#!/usr/bin/python

import sys, re

input = sys.argv[1]

with open(input, 'r') as f:

  lines = f.readlines()

  for line in lines:

    if re.search('^\s*W\s*\(', line, re.IGNORECASE):

      p = re.search('^\s*W\s*\(\s*(.*)\s*\)', line, re.IGNORECASE)

      content = p.group(1);

      #content = p.group(1).split();

      print content

      m, n, tmp, arrtmp, arr = 0, 1, "", [], []

      for character in content:

        if re.search("\(", character):

          m+=1

          arrtmp.append(character)

        elif re.search("\)", character):

          arrtmp.append(character)

          m-=1

        else:

          arrtmp.append(character)