新概念

comparable

官方解释: the comparable constraint is predeclared in Go. It allows any type whose values may be used as an operand of the comparison operators == and !=.

可比较的类型

any

官方解释: any is an alias for interface{} and is equivalent to interface{} in all ways.

等同于 interface{}

constraint

类型约束声明为接口. For example:

type Number interface {
 int64 | float64
}

type Number interface {
	~int64 | ~float64 // ~ 表示所有的 int64, float64, 即用户自定义的别名
}

源码

• go-generic/start (opens new window)

参考资料

• https://go.dev/doc/tutorial/generics (opens new window)