[GO]二维数组的介绍

package main

import "fmt"

func main()  {
    var a [][]int
    // 有几个方括号就是几维数据
    // 有几个方括号就需要几重循环
    k :=
    for i:=; i<; i++{
        for j:=; j<; j++{
            k++
            a[i][j]=k
            fmt.Printf("a[%d][%d]=%d", i, j, a[i][j])
        }
        fmt.Println("\n")
    }
    fmt.Println("a = ", a)

    b := [][]int{{,,,}, {,,,}, {,,,}}
    fmt.Println("b = ", b)

    c := [][]int{{,,}, {,,}, {,,,}} //初始值为0
    fmt.Println("c = ", c)

    d := [][]int{{,,,}, {,,,}}
    fmt.Println("d = ", d)

    e := [][]int{:{,,,}} //定义第二组为给定的值，其它的为初始值
    fmt.Println("e = ", e)
}

执行的结果为

a =  [[   ] [   ] [   ]]
b =  [[   ] [   ] [   ]]
c =  [[   ] [   ] [   ]]
d =  [[   ] [   ] [   ]]
e =  [[   ] [   ] [   ]]