dxavx

package main

import (
	"fmt"
	"unicode/utf8"
)

func main() {
	// empty string
	var str string

dxavx

package main

import "fmt"

func main() {
	a := 2
	b := &a
	*b = 3  // a = 3
	c := &a // new variable pointer A
	fmt.Println(a, b, c)

dxavx

package main

import "fmt"

const pi = 3.14
const (
	hello = "Hello"
	e     = 2.718
)