동적 언어 관점에서 Go 언어의 유연성을 살펴보세요.

package main

import (
    "fmt"
)

type Animal interface {
    Speak() string
}

type Dog struct {
    Name string
}

func (d Dog) Speak() string {
    return "汪汪汪"
}

type Cat struct {
    Name string
}

func (c Cat) Speak() string {
    return "喵喵喵"
}

func main() {
    animals := []Animal{Dog{Name: "旺财"}, Cat{Name: "小白"}}

    for _, animal := range animals {
        fmt.Printf("%s发出了声音：%s
", animal, animal.Speak())
    }
}

package main

import (
    "fmt"
    "reflect"
)

func Add(a, b int) int {
    return a + b
}

func Sub(a, b int) int {
    return a - b
}

func main() {
    funcName := "Add"
    funcValue := reflect.ValueOf(funcName)
    if funcValue.Kind() == reflect.String {
        if funcName == "Add" {
            addFunc := reflect.ValueOf(Add)
            args := []reflect.Value{reflect.ValueOf(10), reflect.ValueOf(5)}
            result := addFunc.Call(args)
            fmt.Printf("%s(10, 5) = %d
", funcName, result[0].Int())
        } else if funcName == "Sub" {
            subFunc := reflect.ValueOf(Sub)
            args := []reflect.Value{reflect.ValueOf(10), reflect.ValueOf(5)}
            result := subFunc.Call(args)
            fmt.Printf("%s(10, 5) = %d
", funcName, result[0].Int())
        }
    }
}