正则表达式读取文件中的邮箱和固话

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                  合作联系                </div>
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                      市场合作：upmco@baidu.com                  </span><span class="mail-content-text">
                      校园合作：campusmaster@baidu.com                  </span><span class="mail-content-text">
                      战略合作：zhanzhangpingtai@baidu.com                  </span>                </div>
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                      百度无线：mbaidu@baidu.com                  </span><span class="mail-content-text">
                      百度推广售后热线：400-921-9999                  </span><span class="mail-content-text">
                      百度推广销售热线：400-800-8888                  </span>                </div>
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                      投诉中心网址： http://help.baidu.com                  </span><span class="mail-content-text">
                      职业道德举报邮箱：bdjb@baidu.com                  </span>                </div>
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>>> with open(r‘d:\pyhton\one\contact.txt‘,‘r‘) as fp:
...     content = fp.readlines()
#返回的列表
>>> with open(r‘d:\pyhton\one\contact.txt‘,‘r‘,encoding=‘utf-8‘) as fp:
...     content = fp.read()
#返回的字符串
>>> type(content)
<class ‘str‘>
直接匹配字符串
>>> import re
>>> re.findall(r‘[a-z]+@baidu.com‘,content)
[‘upmco@baidu.com‘, ‘campusmaster@baidu.com‘, ‘zhanzhangpingtai@baidu.com‘, ‘mba
idu@baidu.com‘, ‘bdjb@baidu.com‘]
>>> re.findall(r‘\d{3}-\d{3}-\d{4}‘,content)
[‘400-921-9999‘, ‘400-800-8888‘]
>>>