package main

import "fmt"

type Person4 struct {
	Name string
	Age  int
}

// closureEscape 返回闭包，捕获的变量逃逸
func closureEscape() func() *Person4 {
	p := &Person4{Name: "Closure Person", Age: 30} // p 逃逸至堆
	return func() *Person4 {
		return p // 闭包引用p，延长其生命周期
	}
}

// goroutineClosure 协程中使用闭包，捕获变量逃逸
func goroutineClosure() {
	x := 100 // x 逃逸至堆
	go func() {
		fmt.Printf("协程闭包捕获：%d\n", x)
	}()
}

func main() {
	closureFunc := closureEscape()
	p := closureFunc()
	fmt.Printf("闭包捕获变量：%+v\n", *p)

	goroutineClosure()
}