go 数组

package main

import "fmt"
import "reflect"
func main() {
    var arr[5]int
    fmt.Println(reflect.TypeOf(arr))
    var sli[]int
    fmt.Println(reflect.TypeOf(sli))
    
    arr1 := [1]int{100}
    arr2 := [2]int{1,2}
    arr3 := [...]int{1,2,3,4,5}
    fmt.Println(arr,"\n",arr1,"\n",arr2,"\n",arr3)

    fmt.Println("二维数组")

    arr4 := [2][3]int {{1,2,3},{4,5,6}}
    fmt.Println(arr4)
    arr5 := [2][3]string{{"jack","lily","lucy"},{"张三","李四","王五"}}
    fmt.Println(arr5)
    fmt.Println(arr5[0][2])
    fmt.Println(arr5[1][0])

    fmt.Println("多维数组")
    arr6 := [2][3][4]interface{} {
        {   
            {1,2,3,4},
            {"21",22.22,false,24},
            {31,32.0,33,nil}},
        {   
            {41,42,"43",44},
            {51,"jack",53,54},
            {61,62,nil,64}}}
    fmt.Println(arr6)
    fmt.Println(arr6[0:1])
    fmt.Println(arr6[0:1][1:2])

    fmt.Println("数组的比较")
    arr10 := [3]int{1,2,3}
    arr11 := [3]int{1,2,3}
    arr12 := [...]int{1,2,3}
    sli13 := []int{1,2,3}
    fmt.Println(sli13)

    fmt.Println(arr10 == arr11)
    fmt.Println(arr10 == arr12)
    // fmt.Println(arr10 == sli13) ERRIR mismatched types [3]int and []int 数组不能和slice比较
}

 

[5]int
[]int
[0 0 0 0 0]
 [100]
 [1 2]
 [1 2 3 4 5]
二维数组
[[1 2 3] [4 5 6]]
[[jack lily lucy] [张三 李四 王五]]
lucy
张三
多维数组
[[[1 2 3 4] [21 22.22 false 24] [31 32 33 <nil>]] [[41 42 43 44] [51 jack 53 54] [61 62 <nil> 64]]]
[[[1 2 3 4] [21 22.22 false 24] [31 32 33 <nil>]]]
[[[41 42 43 44] [51 jack 53 54] [61 62 <nil> 64]]]
数组的比较
[1 2 3]
true
true