By default, a variable is scoped to the function in which it is first assigned to, or is global if its first assignment occurs outside any function.

默认情况下，变量的范围是变量第一次被分配到的函数的内部，如果它的第一次分配出现在任何函数的外部，那么它就是全局变量。

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By default, a variable is scoped to the function in which it is first assigned to, or is global if its first assignment occurs outside any function.

默认情况下，变量的范围是变量第一次被分配到的函数的内部，如果它的第一次分配出现在任何函数的外部，那么它就是全局变量。

youdao