go clone
package main
import (
"fmt"
)
func main() {
//基本数据类型可以用任意方式克隆(int, float, complex, point)
type BaseType int
numA := BaseType(5)
numB := numA
var numC = numA
fmt.Printf("number\nA:%p\nB:%p\nC:%p\n", &numA, &numB, &numC)
//list类型和基本类型一样
listA := [3]int{1, 2, 3}
listB := listA
var listC = listA
fmt.Printf("list:\nA:%p\nB:%p\nC:%p\n", &listA, &listB, &listC)
//struct类型也和基本类型一样
type TestData struct {
id int
data string
}
structA := TestData{0, "test"}
structB := structA
var structC = structA
var structD TestData
structD = structA
fmt.Printf("struct:\nA:%p\nB:%p\nC:%p\nD:%p\n", &structA, &structB, &structC, &structD)
//slice是引用类型，必须用copy函数
sliceA := []int{1, 2, 3, 4, 5, 6}
sliceB := sliceA
var sliceC = sliceA
sliceD := make([]int, 6)
copy(sliceD, sliceA)
fmt.Printf("slice:\nA:%p\nB:%p\nC:%p\nD:%p\n", sliceA, sliceB, sliceC, sliceD)
//map也是引用类型
mapA := map[byte]int{
'A': 1,
'B': 2,
'C': 3,
}
mapB := mapA
mapC := make(map[byte]int, 3)
//map目前没有可供使用的copy函数
for k, v := range mapA {
mapC[k] = v
}
fmt.Printf("map:\nA:%p\nB:%p\nC:%p\n", mapA, mapB, mapC)
}