首次提交：初始化项目代码

escape/reference_transfer.go

@@ -0,0 +1,45 @@
+package main
+
+import "fmt"
+
+// 全局变量，存储Person指针
+var globalPerson *Person2
+
+// 全局切片，存储Person指针
+var globalPersonSlice []*Person2
+
+type Person2 struct {
+	Name string
+	Age  int
+}
+
+// storePerson 接收指针参数并返回，触发逃逸
+func storePerson(p *Person2) *Person2 {
+	return p // 指针被返回，触发逃逸
+}
+
+// addToGlobal 将指针存入全局变量，触发逃逸
+func addToGlobal() {
+	p := &Person2{Name: "Bob", Age: 30}
+	globalPerson = p // 存入全局变量，p逃逸
+}
+
+// addToGlobalSlice 将指针存入全局切片，触发逃逸
+func addToGlobalSlice() {
+	for i := 0; i < 3; i++ {
+		p := &Person2{Name: fmt.Sprintf("Person%d", i), Age: 20 + i}
+		globalPersonSlice = append(globalPersonSlice, p) // p逃逸至切片
+	}
+}
+
+func main() {
+	p := &Person2{Name: "Charlie", Age: 28}
+	storedP := storePerson(p)
+	fmt.Printf("引用传递：%+v\n", *storedP)
+
+	addToGlobal()
+	fmt.Printf("全局变量存储：%+v\n", *globalPerson)
+
+	addToGlobalSlice()
+	fmt.Printf("全局切片存储：%d个Person\n", len(globalPersonSlice))
+}