self 和 Self 和有什么不一样? [英] What's the difference between self and Self?
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问题描述
我在文档中没有遇到过 Self，只有在源代码中.该文档仅使用 self.
I haven't come across Self in the documentation, only in the source code. The documentation only uses self.
推荐答案
self 当用作第一个方法参数时，是 self: Self 的简写.还有&self，相当于self: &Self，还有&mut self，相当于self: &mut Self.
self when used as first method argument, is a shorthand for self: Self. There are also &self, which is equivalent to self: &Self, and &mut self, which is equivalent to self: &mut Self.
Self 是方法接收类型的语法糖(即该方法所在的类型).这也允许泛型类型没有太多重复.
Self in method arguments is syntactic sugar for the receiving type of the method (i.e. the type whose impl this method is in). This also allows for generic types without too much repetition.
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