interface.go

package main

import (
	"fmt"
)

func main() {
	var i interface{}
	i = "Go Engineering 2.0"
	i = 2021
	i = 10.55
	r := i.(float64)
	fmt.Println(r)

	var i2 []interface{}
	i2 = append(i2, "Go v2")
	i2 = append(i2, 2022)
	i2 = append(i2, 23.44)

	i = map[int]string{
		0: "GO",
		1: "C",
	}

	i2 = append(i2, i)

	for _, x := range i2 {
		fmt.Println(x)
	}
}