程序员要保证一定的代码量就必须勤奋的敲代码，但怎么知道自己一共写了多少代码呢，笔者用python写了个简单的脚本，遍历所有的.java,.cpp,.c文件的行数，但是正如大家所知，java生成了许多代码，所以有许多水分，准确性并不太高，只具有一定的参考价值。

import os
import easygui as g
import sys
import chardet
path = 'C:/'
path='D:/Data/CProject/dataStruct/PAT/PAT'
path='F:/Workspaces'
path2='D:/Data/CProject'
path3='D:/WorkSpace/SoftWare/cocos2d-x-2.2.3/projects'
path4='F:/MyWrokspace'
iforjava=0;
iforcpp=0;
iforc=0;for root, dirs, files in os.walk(path):#files=''.join(files)#print(type(files))for str1 in files:if 'java'==str1.split('.').pop():print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= 'gbk').readlines())iforjava=iforjava+int(count)print('行数为:',count)for root, dirs, files in os.walk(path2):#files=''.join(files)#print(type(files))for str1 in files:if 'c'==str1.split('.').pop():print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= 'gbk').readlines())iforc=iforc+int(count)print('行数为:',count)if 'cpp'==str1.split('.').pop():print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= 'gbk').readlines())iforcpp=iforcpp+int(count)print('行数为:',count)for root, dirs, files in os.walk(path3):#files=''.join(files)#print(type(files))for str1 in files:if 'c'==str1.split('.').pop():print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= 'gbk').readlines())iforc=iforc+int(count)print('行数为:',count)if 'cpp'==str1.split('.').pop() and len(str1.split('.'))==2 and root.split('\\').pop()!='proj.wp8' and root.split('\\').pop()!='proj.winrt':print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= 'gbk').readlines())'''file =  open(root+'\\'+str1, "rb")#要有"rb"，如果没有这个的话，默认使用gbk读文件。           buf = file.read()   result = chardet.detect(buf)   file = open(root+'\\'+str1,"r",encoding=result["encoding"])count=len(file.readlines())'''iforcpp=iforcpp+int(count)print('行数为:',count)for root, dirs, files in os.walk(path4):#files=''.join(files)#print(type(files))for str1 in files:if 'java'==str1.split('.').pop()and root.split('\\').pop()!='style':print("Root = ", root, "dirs = ", dirs, "files = ", str1)count= len(open(root+'\\'+str1,'rU',encoding= ('gbk' or 'utf-8')).readlines())iforjava=iforjava+int(count)print('行数为:',count)i=iforjava+iforc+iforcpp                       
print('总行数为:',i)
lineall=str(i)g.msgbox("嗨，你一共写了"+lineall+"行代码，要继续加油哦^_^")
g.msgbox("其中\nC语言"+str(iforc)+"行\nC++"+str(iforcpp)+"行\njava"+str(iforjava)+"行")os.system('pause')

在打开文件的时候，老是因为GBK编码与UTF-8编码出错，因为不知道文件的编程格式，所以会以错误的编码方式打开，所说可以通过chardet包解决，但似乎还没有引入到python3中，所以只能手动改。。。。

运行截图如下：