判断是否为字母, 数字 isalnum() isalpha() isnumeric() Syntax 12345 str.isalnum()# 判断是否整个stringstr.isalpha() Return Type Boolean Ex: 1234567891011121314 # No space in stringstr = "this2018"str.isalnum()True# Space in stringstr = "this is..."str.isalnum()False# Check isalpha()str = "this2018">>> str.isalpha()False 赞微海报分享
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