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接口定义疑问 about go-gin-api HOT 3 CLOSED

xinliangnote avatar xinliangnote commented on August 23, 2024
接口定义疑问

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Comments (3)

xinliangnote avatar xinliangnote commented on August 23, 2024

i() 可以理解为是一个 小写方法,至于起什么名字都可以,目的是为了这个 interface{} 只能在本包被实现,不允许在其他包被实现。

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colinrs avatar colinrs commented on August 23, 2024

i() 可以理解为是一个 小写方法,至于起什么名字都可以,目的是为了这个 interface{} 只能在本包被实现,不允许在其他包被实现。

Go的接口在哪里被实现都可以,为什么要做这个只能在本包被实现,不允许在其他包被实现的限制?

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xinliangnote avatar xinliangnote commented on August 23, 2024

i() 可以理解为是一个 小写方法,至于起什么名字都可以,目的是为了这个 interface{} 只能在本包被实现,不允许在其他包被实现。

Go的接口在哪里被实现都可以,为什么要做这个只能在本包被实现,不允许在其他包被实现的限制?

如果接口中定义的方法全为大写方法,是可以被其他包实现的,如果定义了小写方法其他包是不能实现的。

现在这样写是遵循自己定义的项目规范,例如 admin_handler 中定义的接口,只能在 admin_hander 包中去实现,这样便于后期维护代码。

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