实现外观模式示例，添加相关类和方法，增强代码可读性

go/facade/main.go

@@ -0,0 +1,72 @@
+package main
+
+import (
+	"fmt"
+)
+
+/*
+实例
+汤宝宝教你番茄炒蛋~
+*/
+
+type TomatoEgg struct{}
+
+func (t *TomatoEgg) Serve() {
+	fmt.Println("番茄炒蛋上桌啦！")
+}
+
+type CutTomato struct{}
+
+func (c *CutTomato) Cut() {
+	fmt.Println("番茄切好了。")
+}
+
+type BeatEgg struct{}
+
+func (b *BeatEgg) Beat() {
+	fmt.Println("鸡蛋打散了。")
+}
+
+type Cook struct {
+	cutTomato *CutTomato
+	beatEgg   *BeatEgg
+}
+
+func (c *Cook) CookDish() {
+	c.cutTomato.Cut()
+	c.beatEgg.Beat()
+	fmt.Println("食材放入锅中，开火加热。")
+	fmt.Println("番茄炒蛋炒好了。")
+}
+
+// 外观
+type ChefFacade struct {
+	cook *Cook
+	dish *TomatoEgg
+}
+
+func NewChefFacade() *ChefFacade {
+	return &ChefFacade{
+		cook: &Cook{
+			cutTomato: &CutTomato{},
+			beatEgg:   &BeatEgg{},
+		},
+		dish: &TomatoEgg{},
+	}
+}
+
+func (c *ChefFacade) PrepareAndServe() {
+	fmt.Println("准备食材...")
+	c.cook.CookDish()
+	c.dish.Serve()
+}
+
+func main() {
+	fmt.Println("============= 外观模式 =============")
+
+	chef := NewChefFacade()
+	chef.PrepareAndServe()
+
+	fmt.Println()
+	fmt.Println("=========== 外观模式结束 ===========")
+}