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['http:\\www.baidu.com']
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import re
s='<head><title>http:\\www.baidu.com</title></head>'
print re.findall(r'title>(.+)</title',s)
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['http:\\www.baidu.com']
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import re
s='zhuangruln@gmail.com  zhuangasdsad@126.com zhusdandsai@adsd'
print re.findall(r'(\w+@\w+\.\w+)',s)
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['zhuangruln@gmail.com', 'zhuangasdsad@126.com']
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