Python实现代码统计(代码+注释+空

# -*- coding: utf-8 -*-
"""
Created on Thu Apr 17 17:15:40 2014
@author: author
"""
import os;
path_head = '代码路径头部'
path_list = '代码绝对路径' 
fileClasses = ['java']   #需要统计的文件类型
totalLines = 0
commentAll = 0
normalAll = 0
whiteAll = 0
for root,dirs,files in os.walk(path_head + path_list):
    #处理路径中的 '/'
    dirLen = len(root)
    lastChar = root[dirLen-1:dirLen]
    if lastChar =='/' :
        root = root[0:dirLen-1]
         
    for afile in files:
        fileDir = root+'/'+ afile
             
        #过滤文件类型
        strs = afile.split('.')
        fileClass = strs[len(strs)-1]
        if fileClass not in fileClasses :
            continue
             
        with open(fileDir) as file:
            commentLines = 0
            whiteLines = 0
            normal = 0
            comment = False
                 
            lines = file.readlines()
            for i in lines:
                i = i.strip()
                #空行
                if(i==''):
                    whiteLines=whiteLines+1
                #注释 /*   */
                elif(i.startswith('/*') and True==i.endswith('*/')):
                    commentLines=commentLines+1
                #注释 /* 开头
                elif(i.startswith('/*') and False==i.endswith('*/')):
                    commentLines=commentLines+1
                    comment=True
                #注释 中间 和 */ 结尾
                elif(True==comment):
                    commentLines=commentLines+1
                    if(i.endswith('*/')):
                        comment=False
                #注释 //
                elif(i.startswith('//')):
                    commentLines=commentLines+1
                #代码
                else:
                    normal=normal+1
            #单文件统计结果
            print ('%s 代码行数:%d 空行数:%d 注释行数:%d'%(fileDir[len(path_head):], normal, whiteLines, commentLines))
            commentAll+= commentLines
            normalAll += normal
            whiteAll += whiteLines
#统计结果
print ('总行数:%d' %(commentAll + normalAll + whiteAll))
print ('总代码行数:%d' %(normalAll))
print ('总注释行数:%d' %(commentAll))
print ('总空行数:%d' %(whiteAll))