tomtsang/struct-anonymous-method.go

## struct-anonymous-method.go
package main

import (
	"fmt"
	"math"
)

type Point struct {
	x, y float64
}

func (p *Point) Abs() float64 {
	return math.Sqrt(p.x*p.x + p.y*p.y)
}

type NamedPoint struct {
	Point
	name string
}

func main() {
	pa := Point{3, 4}
	n := &NamedPoint{pa, "Pythagoras"}
	fmt.Println(pa.Abs()) // 打印5
	fmt.Println(n.Abs())  // 打印5
}
	package main

	import (
	"fmt"
	"math"
	)

	type Point struct {
	x, y float64
	}

	func (p *Point) Abs() float64 {
	return math.Sqrt(p.xp.x + p.yp.y)
	}

	type NamedPoint struct {
	Point
	name string
	}

	func main() {
	pa := Point{3, 4}
	n := &NamedPoint{pa, "Pythagoras"}
	fmt.Println(pa.Abs()) // 打印5
	fmt.Println(n.Abs()) // 打印5
	}