Golang：deepcopy深拷贝工具库

Deep copy things

译文：事物的深度复制

文档

• github https://github.com/mohae/deepcopy
• pkg.go https://pkg.go.dev/github.com/mohae/deepcopy

安装

go get github.com/mohae/deepcopy

示例

1、深拷贝切片

package main

import (
    "fmt"

    "github.com/mohae/deepcopy"
)

func main() {
    var s1 = []int{1, 2, 3, 4, 5}

    // 深拷贝切片
    cpy := deepcopy.Copy(s1)
    s2 := cpy.([]int)

    // 修改s2的值
    s2[0] = 6

    fmt.Printf("s1: %v\n", s1)
    // s1: [1 2 3 4 5]

    fmt.Printf("s2: %v\n", s2)
    // s2: [6 2 3 4 5]

}

2、深拷贝map

package main

import (
    "fmt"

    "github.com/mohae/deepcopy"
)

func main() {
    var m1 = make(map[string]int)
    m1["age"] = 10

    // 深拷贝map
    cpy := deepcopy.Copy(m1)
    m2 := cpy.(map[string]int)

    // 修改m2的值
    m2["age"] = 12

    fmt.Printf("m1: %v\n", m1)
    // m1: map[age:10]

    fmt.Printf("m2: %v\n", m2)
    // m2: map[age:12]
}

参考 「Go工具箱」推荐一个非常简单的深拷贝工具：deepcopy