dongtaogou6226 2014-03-11 05:42
浏览 504
已采纳

在golang中定义一个返回可变大小切片的函数

I would like to build a function that returns a slice of any size. I know I can do

func BuildSlice() [100]int { return [100]int{} }

but I would like to be able to return slices of different sizes from the same function. Something like:

func BuildSlice(int size) [...]int { return [size]int{} }

I've tried the above as well as

func BuildSlice(size int) []int { return [size]int{} }

Please point me in the right direction.

Thanks.

  • 写回答

2条回答 默认 最新

  • dreamone5156 2014-03-11 07:18
    关注

    First of all, slices are already of "variable size": [100]int and [...]int are array type definitions.

    []int is the correct syntax for a slice, and you could implement the function as:

    func BuildSlice(size int) []int {
        return make([]int, size)
    }
    

    This will return a slice of zero values with the desired size, similar to what your array version does.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(1条)

报告相同问题?

悬赏问题

  • ¥15 使用rabbitMQ 消息队列作为url源进行多线程爬取时,总有几个url没有处理的问题。
  • ¥85 maple软件,solve求反函数,出现rootof怎么办?
  • ¥15 求chat4.0解答一道线性规划题,用lingo编程运行,第一问要求写出数学模型和lingo语言编程模型,第二问第三问解答就行,我的ddl要到了谁来求了
  • ¥15 Ubuntu在安装序列比对软件STAR时出现报错如何解决
  • ¥50 树莓派安卓APK系统签名
  • ¥15 maple软件,用solve求反函数出现rootof,怎么办?
  • ¥65 汇编语言除法溢出问题
  • ¥15 Visual Studio问题
  • ¥20 求一个html代码,有偿
  • ¥100 关于使用MATLAB中copularnd函数的问题