Go built-in functions

package main
import (
	"fmt"
)

func main() {

	num1 := 100
	fmt.Printf ( "num1 type of% T, num1 value =% v,% v num1 address of \ n", num1, num1, & num1)
	// num1 type int, the value num1 = 100, num1 address 0xc000062080

	num2 := new(int)

	* Num2 = 100
	fmt.Printf ( "num2 type% T, the value num2 =% v,% v num2 address of \ n-num2 the pointer value =% v",
		num2, num2, &num2, *num2)
	// num2 Type * int, num2 address value = 0xc000062098, num2 of 0xc00008e020
	// num2 The pointer value = 100
}