Python实现正则表达式匹配任意的邮箱

#-*- coding:utf-8 -*-
__author__ = '杨鑫'
import re
text = input("Please input your Email address：\n"):
if re.match(r'[0-9a-zA-Z_]{0,19}@163.com',text):
print('Email address is Right!')
else:
print('Please reset your right Email address!')

#-*- coding:utf-8 -*-
__author__ = '杨鑫'
import re
text = input("Please input your Email address：\n")
if re.match(r'^[0-9a-zA-Z_]{0,19}@[0-9a-zA-Z]{1,13}\.[com,cn,net]{1,3}$',text):
#if re.match(r'[0-9a-zA-Z_]{0,19}@163.com',text):
print('Email address is Right!')
else:
print('Please reset your right Email address!')