Different between NSData and NSMutableData in iPhone

StackOverflow https://stackoverflow.com/questions/15446169

  •  24-03-2022
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質問

What is the difference between NSData and NSMutableData?

役に立ちましたか？

解決

From the Stack Overflow tag-wikis:

The NSData class is an apple class for holding generic data. Often used when reading/writing from and to files, and the internet.

NSMutableData (and its superclass NSData) provide data objects, object-oriented wrappers for byte buffers.

他のヒント

NSData is fixed after creation.

NSMutableData, as the name implies, allows operations that change the contents (appendBytes:, appendData, setData:...).

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