go知识重新整理

Go/DesignPattern/command/command.go

@@ -0,0 +1,81 @@
+/**
+* @Author:zhoutao
+* @Date:2020/12/12 上午10:58
+* @Desc:
+ */
+
+package command
+
+import "fmt"
+
+//命令模式:本质是把某个对象的"方法调用"-》封装到对象中，方便传输、存储、调用
+//使用命令模式还可以用作： 批处理、任务队列、undo,redo等，
+
+type Command interface {
+	Execute()
+}
+
+//MotherBoard
+type MotherBoard struct {
+}
+
+func (*MotherBoard) Start() {
+	fmt.Print("system starting\n")
+}
+
+func (*MotherBoard) Reboot() {
+	fmt.Print("system rebooting\n")
+}
+
+//NewStart
+func NewStartCommand(mb *MotherBoard) *StartCommand {
+	return &StartCommand{
+		mb: mb,
+	}
+}
+
+// 将启动操作封装到了StartCommand对象中
+type StartCommand struct {
+	mb *MotherBoard
+}
+
+func (s *StartCommand) Execute() {
+	s.mb.Start()
+}
+
+//NewReboot
+func NewRebootCommand(mb *MotherBoard) *RebootCommond {
+	return &RebootCommond{
+		mb: mb,
+	}
+}
+
+// 将reboot操作封装到了额RebootCommond对象中
+type RebootCommond struct {
+	mb *MotherBoard
+}
+
+func (r *RebootCommond) Execute() {
+	r.mb.Reboot()
+}
+
+//NewBox
+func NewBox(button1, button2 Command) *Box {
+	return &Box{
+		button1: button1,
+		button2: button2,
+	}
+}
+
+type Box struct {
+	button1 Command
+	button2 Command
+}
+
+func (b *Box) PressButton1() {
+	b.button1.Execute()
+}
+
+func (b *Box) PressButton2() {
+	b.button2.Execute()
+}