Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

疑问-【不能将函数内的指向局部变量的指针作为返回值, 函数结束指向空间会被释放】 #7

Open
@newhoo

Description

关于这点【不能将函数内的指向局部变量的指针作为返回值, 函数结束指向空间会被释放】有疑问,示例如下:

package main
import (
	"fmt"
)
func f() *int {
	n := 100
	fmt.Println("1:", &n, n)
	return &n
}
func main() {
	n := f()
	fmt.Println("2:", n, *n)
	(*n) = 99
	fmt.Println("3:", n, *n)
}

输出:

1: 0x140000aa008 100
2: 0x140000aa008 100
3: 0x140000aa008 99

Metadata

Metadata

Assignees

No one assigned

    Labels

    No labels
    No labels

    Projects

    No projects

    Milestone

    No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

        AltStyle によって変換されたページ (->オリジナル) /