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写了8年Python,我终于把那个“写代码快但说不清为什么”的问题解决了
大家好,我是程序员晚枫。01我面试了一个写了4年Python的程序员。我问他:"装饰器的底层原理是什么?"他说:"就是在函数外面包一层..."我又问:"functools.wraps是干嘛的?"他说:"保持原函数的信息...大概..."我没有继续追问第三题。不是因为他的回答完全错误,而是我发现——他不是不努力,他是真的"不知道自己不知道"。
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