本程序基于linux平台&＃xff0c;使用python开发&＃xff0c;用于统计某个多层文件夹下的源程序的代码行数&＃xff0c;程序去掉了以#、//和/*xxx*/的注释行。

#!/usr/bin/env python
import os
import re
import getopt
import sys

total &＃61; 0
file_list &＃61; []

def trace(dir):
 &＃39;&＃39;&＃39;define a function for count the line of source code!&＃39;&＃39;&＃39;
 if not os.path.isdir(dir):
  print "You should input a source directory !!!"
  return
 for file in os.listdir(dir):
  fullfile &＃61; os.path.join(dir,file)
  if os.path.isfile(fullfile):
   file_list.append(fullfile)
   continue
  if os.path.isdir(fullfile):
  # print &＃39;directory&＃39;,file
   trace(fullfile)
def count(file):
 starflag &＃61; 0
 number &＃61; 0
 if not os.path.isfile(file):
  return 0
 f &＃61; open(file)
 line &＃61; f.readline()
 while(line):
  #print line
  if isNoneLine(line) &＃61;&＃61; 2:
   line &＃61; f.readline()
   starflag &＃61; 1
   continue
  if isNoneLine(line) &＃61;&＃61; 3:
   line &＃61; f.readline()
   starflag &＃61; 0
   continue
  if starflag &＃61;&＃61; 1:
   line &＃61; f.readline()
   continue
  if isNoneLine(line):
   line &＃61; f.readline()
   continue
  else:
   number &＃61; number &＃43; 1
  line &＃61; f.readline()
 return number

def isNoneLine(line):
 patNoneLine &＃61; re.compile(r&＃39;[\s| ]*\n&＃39;)
 patdefine &＃61; re.compile(r&＃39;^#&＃43;&＃39;)
 patsline &＃61; re.compile(r&＃39;[\s| ]*//&＃39;)
 patstars &＃61; re.compile(r&＃39;[\s| ]*/\*[\s|\S]*&＃39;)
 patstare &＃61; re.compile(r&＃39;[\s|\S]*\*/$&＃39;)

 if patdefine.match(line):
  return 1
 if patsline.match(line):
  return 1
 if patstars.match(line):
  return 2
 if patstare.match(line):
  return 3
 if patNoneLine.match(line):
  return 1
 else:
  return 0

def main():
 global file_list
 global total
 try:
  opts, args &＃61; getopt.getopt(sys.argv[1:],"d:")
 except:
  print "Usage: ",sys.argv[0],"-d directory"
  sys.exit()
 for o,dir in opts:
  if o &＃61;&＃61; &＃39;-d&＃39;:
   trace(dir)
  else:
   trace(os.getcwd())
 for file in file_list:
  total &＃61; total &＃43; count(file)
 print total

if __name__ &＃61;&＃61; &＃39;__main__&＃39;:
 main()