首次提交：初始化项目代码

escape/interface_escape.go

@@ -0,0 +1,51 @@
+package main
+
+import "fmt"
+
+// Animal 接口定义
+type Animal interface {
+	Speak() string
+}
+
+// Dog 实现Animal接口
+type Dog struct{}
+
+func (d Dog) Speak() string {
+	return "汪汪汪"
+}
+
+// Cat 实现Animal接口
+type Cat struct{}
+
+func (c Cat) Speak() string {
+	return "喵喵喵"
+}
+
+// interfaceEscape 变量赋值给接口，触发逃逸
+func interfaceEscape(animalType string) Animal {
+	var a Animal
+	if animalType == "dog" {
+		d := Dog{} // d 逃逸至堆
+		a = d
+	} else {
+		c := Cat{} // c 逃逸至堆
+		a = c
+	}
+	return a
+}
+
+// interfacePointer 指针赋值给接口，触发逃逸
+func interfacePointer() interface{} {
+	p := &Dog{} // p 逃逸至堆
+	return p
+}
+
+func main() {
+	animal := interfaceEscape("dog")
+	fmt.Printf("接口动态派发：%s\n", animal.Speak())
+
+	iface := interfacePointer()
+	if dog, ok := iface.(*Dog); ok {
+		fmt.Printf("接口指针逃逸：%s\n", dog.Speak())
+	}
+}