re.sub用于替换字符串中的匹配项 re.sub(pattern, repl, string, count=0) 代码 123456789101112131415161718192021 import rephone = "2004-959-559 # 这是一个电话号码"num = re.sub(r'#.*$', "", phone)print("电话号码:", num)# 移除非数字的内容num = re.sub(r'D', "", phone)print("电话号码:", num)# 将匹配的数字乘以2def (matched): value = int(matched.group('value')) return str(value * 2)s = 'A23G4HFD567'print(re.sub('(?P<value>d+)', double, s)) 运行结果 123 电话号码: 2004-959-559 电话号码: 2004959559A46G8HFD1134 赞微海报分享
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