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go奇怪的切片 - Go语言中文网 - Golang中文社区
source link: https://studygolang.com/articles/36281
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go奇怪的切片
xxie · 大约10小时之前 · 181 次点击 · 预计阅读时间 1 分钟 · 大约8小时之前 开始浏览go版本go version go1.20.6 windows/amd64
func main() {
list := []int{2, 4, 8, 2}
list1 := list[0:3]
list1[0] = 10
list1 = append(list1, 12)
fmt.Println(list1, list)//打印 [10 4 8 12] [10 4 8 12]
list1 = append(list1, 5)
fmt.Println(list1, list) //打印 [10 4 8 12 5] [10 4 8 12]
}这些还比较好理解 两个切片共用底层数组，append 超过cap长度后
接着看下面
func main() {
list := []int{2, 4, 8, 2}
list1 := list[0:3]
list1[0] = 10
fixList(list1)
fmt.Println(list1, list) //打印 [10 4 8] [10 4 8 3]
}
func fixList(param []int) {
param = append(param, 3)
}有疑问加站长微信联系（非本文作者）
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