利用python 统计源码行数详解编程语言

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。

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)