在Go中连接两个切片 [英] Concatenate two slices in Go

问题描述

我试图合并切片 [1,2] 和切片 [3,4] 。如何在Go中执行此操作？

I'm trying to combine the slice [1, 2] and the slice [3, 4]. How can I do this in Go?

我试过了：

I tried:

append([]int{1,2}, []int{3,4})

但得到：

but got:

cannot use []int literal (type []int) as type int in append

但是，文档似乎表明这是可能的，我错过了什么？

However, the documentation seems to indicate this is possible, what am I missing?

slice = append(slice, anotherSlice...)

推荐答案

在第二个切片后添加点：

Add dots after the second slice:

//---------------------------vvv
append([]int{1,2}, []int{3,4}...)

---

这就像任何其他可变参数函数一样。

---

This is just like any other variadic function.

func foo(is ...int) {
    for i := 0; i < len(is); i++ {
        fmt.Println(is[i])
    }
}

func main() {
    foo([]int{9,8,7,6,5}...)
}

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