You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: main.go
    path of file: ./repos/learning/golang/source_code/Go语言核心编程代码/chapter08/traversearrary
    
    the code of the file until where you have to start completion: package main
import (
	"fmt"
)

func main() {

	//演示二维数组的遍历
	var arr3  = [2][3]int{{1,2,3}, {4,5,6}}

	//for循环来遍历
	for i := 0; i < len(arr3); i++ {
		for j := 0; j < len(arr3[i]); j++ {
			fmt
    
func main() {

	//演示二维数组的遍历
	var arr3  = [2][3]int{{1,2,3}, {4,5,6}}

	//for循环来遍历
	for i := 0; i < len(arr3); i++ {
		for j := 0; j < len(arr3[i]); j++ {
			fmt.Printf("%v\t", arr3[i][j])
		}
		fmt.Println()
	}

	//for-range来遍历二维数组
	for i, v := range arr3 {
		for j, v2 := range v {
			fmt.Printf("arr3[%v][%v]=%v \t",i, j, v2)
		}
		fmt.Println()	
	}
}