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正则表达式验证数字的正则表达式集 验证数字：^[0-9]*$验证n位的数字：^\d{n}$验证至少n位数字：^\d{n,}$验证m-n位的数字：^\d{m,n}$验证零和非零开头的数字：^(0|[1-9][0-9]*)$验证有两位小数的正实数：^[0-9]+(.[0-9]{2})?$验证有1-3位小数的正实数：^[0-9]+(.[0-9]{1,3})?$验证非零的正整数：^\+

Regular Expression HOWTOAuthor:A.M. Kuchling amk@amk.ca>AbstractThis document is an introductory tutorial to using regular expressions in Python with the re module. It

regex pattern in python for parsing HTML title tagsup vote6down votefavoriteI am learning to use both the re module and the urllib module in python and atte

Python Regular ExpressionsRegular expressions are a powerful language for matching text patterns. This page gives a basic introduction to regular expressions themselves sufficient for our Python