理解Python中mutable

原創 Quant_Learner 2020-07-02 03:23

  • 溯源

    From Chapter 19 : Operating System Services(Page 370) of*《Python Essential Reference》* writen by David M. Beazley:

    Furthermore, the contents of a memory-mapped file are mutable.

    This means that modifications can be made using index-assignment and slice-assignment operators.

    Unless a private mapping of the file has been made, such changes directly alter the contents of the underlying file.

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