Important warning: The default value is evaluated only once. This makes a difference when the default is a mutable object such as a list, dictionary, or instances of most classes. For example, the following function accumulates the arguments passed to it on subsequent calls:
在官方文档的The Python Tutorial里就有
【 在 nokia0125 的大作中提到: 】
: 请问，哪里文档写了，
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修改:annals FROM 221.216.209.62
FROM 221.216.209.62