python 快速文件对比_pythoin 快速比对-优快云博客

本文介绍了一个简单的文件对比工具实现过程，该工具能够读取两个文本文件，并找出它们之间的相同和不同之处。通过使用Python标准库，如os和sys进行文件操作及命令行参数处理，利用多进程提高效率。

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import os,sys,time,json,time
import socket,random,hashlib
import requests,configparser
import json
from datetime import datetime
from multiprocessing.dummy import Pool as ThreadPool

arr={};

def read1(filepath, val):
   with open(filepath) as f:
       for line in f:
           tmp = line.replace('\r','');
           tmp = tmp.replace('\n','');
           if(len(tmp)==0):
               continue
           arr[tmp] = val

def SaveLog(filepath, text, isNewfile=False):
   if(isNewfile==True and os.path.isfile(filepath) and os.path.exists(filepath)):
       os.remove(filepath)
   with open(filepath,'a') as f:
       f.write(text)

def output1(filepath):
   outfile1 = sys.argv[1] + ".out.txt"
   outfile2 = sys.argv[2] + ".out_共有部分.txt"
   if(os.path.exists(outfile1)):
       os.remove(outfile1)
   if(os.path.exists(outfile2)):
       os.remove(outfile2)
   for key in arr:
       if(arr[key]==0):
           SaveLog(outfile1,key + "\r\n")
           print(key + "=0")
       else:
           SaveLog(outfile2,key+ "\t共有部分\r\n")
           print(key + "=1 共有部分")

def main():
   if (len(sys.argv)<3):
       print("me.py a.txt b.txt")
   else:
       file1 = sys.argv[1]
       if(False==os.path.exists(file1)):
           file1 = "a.txt"
       file2 = sys.argv[2]
       if(False==os.path.exists(file2)):
           file2= "b.txt"
       print("*" * 60)
       read1(file1, 0)
       read1(file2, 1)
       output1('c.txt');
       print("*" * 60)

if __name__ == '__main__':
   main()