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- # import re
- # # test match, search, sub, split
- # m = re.search('测试','123测试测试')
- # assert m.span() == (3,5)
- # assert m.group(0) == '测试'
- # assert re.match('测试','123测试测试') is None
- # assert re.sub('测试','xxx','123测试12321测试') == '123xxx12321xxx'
- # # this is different from cpython, the last empty string is not included
- # assert re.split('测试','测试123测试12321测试') == ['', '123', '12321']
- # assert re.split(',','123,456,789,10') == ['123', '456', '789', '10']
- # assert re.split(',',',123,456,789,10') == ['', '123', '456', '789', '10']
- # assert re.split(',','123,456,789,10,') == ['123', '456', '789', '10']
- # assert re.match('1','1') is not None
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