原理先获取所有文件，然后统计每个文件中代码的行数，最后将行数相加，思路很简单。“`python
import os
import os.path
import time
rootdir = ‘文件路径’
filelists = []

遍历文件

def getFile(rootdir):
global filelists
for parent,dirnames,filenames in os.walk(rootdir):
for dirname in dirnames:
getFile(os.path.join(parent,dirname)) #嵌套
for filename in filenames:
#print “filename is:”+ filename
filelists.append(os.path.join(parent,filename))

统计一个文件的行数

def countLine(fname):
count = 0
for file_line in open(fname).xreadlines():
if file_line != ” and file_line != ‘\n’: #过滤掉空行
count += 1
print fname + ‘…..’ , count
return count

if name == ‘main’ :
startTime = time.clock()
getFile(rootdir)
totalline = 0
for filelist in filelists:
totalline = totalline + countLine(filelist)
print ‘totalline:’,totalline
print ‘done:%0.2f second’ % (time.clock() – startTime)
“`

标签：python