Python 中有 3 個不可思議的返回功能

今天給大家分享 3 個比較冷門的知識

第一個：神奇的字典鍵

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some_dict = {}
some_dict[5.5] = "Ruby"
some_dict[5.0] = "JavaScript"
some_dict[5] = "Python"

Output:
>>> some_dict[5.5]
"Ruby"
>>> some_dict[5.0]
"Python"
>>> some_dict[5]
"Python"

“Python” 消除了 “JavaScript” 的存在？