Go language array operation

package main
import "fmt"
func main() {
    
// Declare and use arrays 
var arr1 [5]string// The statement contains 5 String array of elements 
arr2:= [5]string{
    "a","b","c","d","e"}// Initialization contains 5 String array of elements 
arr1=arr2// Array 2 Copy to array 1
	fmt.Println(arr1)
	fmt.Println(arr2)
// Above print results 
//[a b c d e]
//[a b c d e]
var arr3 [3]*string// Declare array pointer variables of string type 
arr4:=[3]*string{
    new(string),new(string),new(string)}// Declare array pointer variables 
*arr4[0]="red"
*arr4[1]="blue"
*arr4[2]="black"
arr3=arr4
for _,addr:=range arr3{
    
	fmt.Println(*addr)
}
	fmt.Println(*arr4[0],*arr4[1],*arr4[2])
/* The above print results  red blue black red blue black*/
// Multidimensional arrays 
var arr5 [3][2]int
arr6:=[3][2]int{
    {
    1,2},{
    4,3},{
    5,6}}// Initialize 2D array 
arr5=arr6// Only two arrays with the same dimension can be assigned 
	fmt.Println(arr5)
	fmt.Println(arr6)
/* Print the results  [[1 2] [4 3] [5 6]] [[1 2] [4 3] [5 6]] */
arr6[0][1]=20
arr6[1][0]=30
	fmt.Println(arr6)
var arr7 [2]int = arr6[0]
	fmt.Print(arr7)
/* Print the results  [[1 20] [30 3] [5 6]] [1 20] */
	// Use values to pass , Pass large arrays between functions , Such as 1e6, There is only 10 An integer value 
	//  Declare an array 
	var array [10]int
	//  Pass the array to the function  foo
	foo(array)//  function  foo  Accept one  10 An array of integer values , Output results here 
	/*  Output results  [0 0 0 0 0 0 0 0 0 0] pass */
}
//main Out of function foo Function is used to pass an array 
func foo(array [10]int)  {
    
	fmt.Println(array)
	fmt.Println("pass")
}```**