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O'Reilly Platform
book
流畅的Python(第2版)
by
Luciano Ramalho
April 2023
Intermediate to advanced
769 pages
25h 16m
Chinese
Posts & Telecom Press
Content preview from
流畅的Python(第2版)
694
|
第
23
章
除了要明确把
self
作为参数,限制必须通过
self
访问实例属性也备受批评。例如,
可以参考
A. M. Kuchling
发表的著名文章“
Python Warts
”(存档)。
Kuchling
自己并不
讨厌
self
限定符,但是他提到了这一点——可能是为了呼应
comp.lang.python
邮件列
表中的观点。我自己并不介意输入
self
限定符,这样便于把局部变量和属性区分开。
我介意的是在
def
语句中使用
self
。
如果讨厌
Python
要求显式使用
self
,可以想想
JavaScript
中隐式
this
那变幻莫测的语
义,这样就会感觉好多了。像这样使用
self
有一些合理之处,
Guido
在他的博客
The
History of Python
中写了一篇文章,题为“
Adding Support for User-Defined Classes
”,
说
明了相关原因。
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Publisher Resources
ISBN: 9787115612366