If you declare a variable or constant outside a function or class definition, it is a global variable, and its value is accessible and modifiable throughout your program.

如果在函数或类定义之外声明变量或常数，则是全局变量，它的值可在整个程序中访问和修改。

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If you declare a variable or constant outside a function or class definition, it is a global variable, and its value is accessible and modifiable throughout your program.

如果在函数或类定义之外声明变量或常数，则是全局变量，它的值可在整个程序中访问和修改。

youdao