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python正则表达式匹配所有格式邮箱

#!/usr/bin/python

import re

f = open("C:\\Users\\Administrator\\Desktop\\email.txt","r")   #设置文件对象

data = f.readlines()  #直接将文件中按行读到list里,效果与方法2一样20 

f.close()             #关闭文件

pattern = re.compile(r'[0-9a-zA-Z_]{0,19}@[0-9a-zA-Z]{1,13}\.[com,cn,net]{1,3}')

result1 = pattern.findall(str(data))

for item in result1:

print(item)



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