注释是可以添加到代码中的修饰符，可以用于包声明、类型声明、构造函数、方法、字段、参数和变量。

Annotations are modifiers you can add to your code and apply to package declarations, type declarations, constructors, methods, fields, parameters, and variables.

youdao

顺便说一下，初始化函数必须是文件中唯一未被声明为 static 的全局标识符。

The init function, by the way, should be the only global identifier in the file that isn't declared static.

youdao

该函数已经用其他链接说明符声明。

The function is already declared with a different linkage specifier.

youdao