数组

https://gobyexample-cn.github.io/arrays

var a [5]int

b := [5]int{1, 2, 3, 4, 5}

多维数组

    var twoD [2][3]int
    for i := 0; i < 2; i++ {
        for j := 0; j < 3; j++ {
            twoD[i][j] = i + j
        }
    }