Explanation of NSCharacterSet and explanation of nscharacterset

Source: Internet
Author: User

Explanation of NSCharacterSet and explanation of nscharacterset

 

 

The meanings of various enumeration types in NSCharacterSet are as follows:

1 controlCharacterSet // controller 2 whitespaceCharacterSet 3 character // space newline 4 decimalDigitCharacterSet // decimal 5 letterCharacterSet // text 6 character // lowercase 7 character // uppercase 8 nonBaseCharacterSet/non-base 9 alphanumericCharacterSet // Letter Number 10 character // can be decomposed into 11 illegalacterset // invalid 12 punctuationCharacterSet // punctuation 13 character // uppercase 14 symbolCharacterSet // symbol 15 newlineCharacterSet // line break

 

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