使用Regex阻止某些电子邮件提供商

^[a-zA-Z0-9._%+-]+@(?:(?:[a-zA-Z0-9-]+\.)?[a-zA-Z]+\.)?(gmail|yahoo|outlook|hotmail)\.com$

import re

email_regex = r'^[a-zA-Z0-9._%+-]+@(?:(?:[a-zA-Z0-9-]+\.)?[a-zA-Z]+\.)?(gmail|yahoo|outlook|hotmail)\.com$'

def is_blocked_email(email):
    if re.match(email_regex, email):
        return True
    else:
        return False

email1 = 'example@gmail.com'
email2 = 'example@othermail.com'

print(is_blocked_email(email1))  # 输出：True
print(is_blocked_email(email2))  # 输出：False