Python对比俩个文件内容

大概总结了Python对比的方法

1、dfflib

#!/usr/bin/python
import difflib
text1 = """text1:  #定义字符串1
This module provides classes and functions for comparing sequences.
including HTML and context and unified diffs."""
 
text1_lines = text1.splitlines() #以行进行分隔，以便进行对比
text2 = """text2: #定义第二个字符串
This module provides """
 
text2_lines = text2.splitlines()
d = difflib.Differ() #创建Differ对象
diff = d.compare(text1_lines, text2_lines)  #采用compare方法对字符串进行比较
print('
'.join(list(diff)))

2、set

import difflib

a = open('./1.txt', 'U').readlines()
b = open('./2.txt', 'U').readlines()
diff = difflib.ndiff(a, b)
print(diff)
for i in diff:
    print(i)
    # if i.startswith('+'):
    #     print(i)

#or
print(set(b)-set(a))

3、Python原始方法对比

import sys
  
f1, f2=None,None
try:
    f1=open("pro1.txt", "r")
    m=f1.readlines()
except IOError:
    print "pro.txt does not exist!"
    sys.exit(2)
finally:
    if f1:
        f1.close()
# reead lines from mids2.txt
try:
    f2=open("pro.txt", "r")
    n=f2.readlines()
except IOError:
    print "pro1.txt does not exist!"
    sys.exit(2)
finally:
    if f2:
        f2.close()
#filter
for a in m:
    for b in n:
        if a==b:
            n.remove(b)    
 
for i in range(len(n)):
    n[i]=n[i].strip()
#print n
#print " ".join(n)
for aar in n:
    with open("baidu.txt","a") as fe:
        fe.write(aar+"
")

转自

(4条消息)使用python读取文件数据并转化为列表_longling0的博客-CSDN博客

https://blog.csdn.net/longling0/article/details/106172862

(3条消息)两行数据进行对比-python_程序员杂谈-CSDN博客

https://blog.csdn.net/trecn001/article/details/84586484

(3条消息)python对比两个文件的方法_yangchaoming的博客-CSDN博客

https://blog.csdn.net/qq_38072531/article/details/78205209

(4条消息)[376]python快速比较两个文件的不同_周小董-CSDN博客

https://blog.csdn.net/xc_zhou/article/details/81814361

python 比较2个文件内容 - 道以万计 - 博客园

https://www.cnblogs.com/snow-backup/p/11726931.html

Python:对比两段文本和两个文件不同的地方 - 简书

https://www.jianshu.com/p/cce80d678b48