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表示原始字符串import re pattern = r'\\\\n' v1 = re.match(pattern, '\\\\n123') v2 = re.match(pattern, '\\\\\n222') v3 = re.match(pattern, '\\n123') print(v1) print(v2) print(v3) 》》》 <re.Match object; span=(0, 3), match='\\\\n'> None None
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