1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118

package main

import "fmt"

type Biology interface {
	Move()
	GetEnergy()
}

type Cow struct {
	Food string
}

func (c Cow) SetFood1(food string) {
	c.Food = food
}

func (c *Cow) SetFood2(food string) {
	c.Food = food
}

func (c Cow) Move() {
	fmt.Println("Moving use four leg.")
}

func (c Cow) GetEnergy() {
	fmt.Println("Getting energy from eating ", c.Food, " .")
}

type Human struct {
	Name string
	Food string
}

func (h Human) SetName1(name string) {
	h.Name = name
}

func (h *Human) SetName2(name string) {
	h.Name = name
}

func (h Human) SetFood1(food string) {
	h.Food = food
}

func (h *Human) SetFood2(food string) {
	h.Food = food
}

func (h Human) Move() {
	fmt.Println(h.Name, ",Moving use two leg.")
}

func (h Human) GetEnergy() {
	fmt.Println(h.Name, ",Getting energy from eating ", h.Food, " .")
}

func main() {
	var bio Biology

	fmt.Println("------------- bio  Cow -------------")
	bio = Cow{}
	bio.Move() // Moving use four leg.
	//bio.SetFood1("grass") //编译报错：bio.SetFood1 undefined (type Biology has no field or method SetFood1)
	//bio.SetFood2("grass") //编译报错：bio.SetFood2 undefined (type Biology has no field or method SetFood2)
	bio.GetEnergy() // Getting energy from eating    .

	fmt.Println("------------- bio  Human -------------")
	bio = Human{}
	bio.Move()
	//bio.SetName1("A") //编译报错：bio.SetName1 undefined (type Biology has no field or method SetName1)
	//bio.SetName2("A") //编译报错：bio.SetName2 undefined (type Biology has no field or method SetName2)
	//bio.SetFood1("rice") //编译报错：bio.SetFood1 undefined (type Biology has no field or method SetFood1)
	//bio.SetFood2("rice") //编译报错：bio.SetFood2 undefined (type Biology has no field or method SetFood2)
	bio.GetEnergy() //  ,Getting energy from eating    .

	fmt.Println("------------- c Cow -------------")
	c := Cow{}
	c.Move() // Moving use four leg.
	c.SetFood1("grass")
	c.GetEnergy() // Getting energy from eating    .
	c.SetFood2("leaf")
	c.GetEnergy() // Getting energy from eating  leaf  .

	fmt.Println("------------- cp Cow -------------")
	cp := &Cow{}
	cp.Move() // Moving use four leg.
	cp.SetFood1("grass")
	cp.GetEnergy() // Getting energy from eating    .
	cp.SetFood2("leaf")
	cp.GetEnergy() // Getting energy from eating  leaf  .

	fmt.Println("------------- h Human -------------")
	h := Human{}
	h.SetName1("A")
	h.Move() //  ,Moving use two leg.
	h.SetName2("B")
	h.Move() // B ,Moving use two leg.

	h.SetFood1("rice")
	h.GetEnergy() // B ,Getting energy from eating    .
	h.SetFood2("fruit")
	h.GetEnergy() // B ,Getting energy from eating  fruit  .

	fmt.Println("------------- hp Human -------------")
	hp := &Human{}
	hp.SetName1("A")
	hp.Move() //  ,Moving use two leg.
	hp.SetName2("B")
	hp.Move() // B ,Moving use two leg.

	hp.SetFood1("rice")
	hp.GetEnergy() // B ,Getting energy from eating    .
	hp.SetFood2("fruit")
	hp.GetEnergy() // B ,Getting energy from eating  fruit  .

}