Golang反射遍历接口实现对象示例

package main

import (
    "fmt"
    "reflect"
)

type Animal interface {
    Speak() string
    Type() string
}

type Dog struct {
    Name string
    Age  int
}

func (d Dog) Speak() string {
    return "Woof!"
}

func (d Dog) Type() string {
    return "Dog"
}

type Cat struct {
    Name string
    Color string
}

func (c Cat) Speak() string {
    return "Meow!"
}

func (c Cat) Type() string {
    return "Cat"
}

func inspectAnimal(a Animal) {
    // 获取反射类型和值
    v := reflect.ValueOf(a)

    // 如果是指针，解引用
    if v.Kind() == reflect.Ptr {
        v = v.Elem()
    }

    t := v.Type()

    fmt.Printf("Inspecting %s:\n", t.Name())

    // 遍历所有可导出字段
    for i := 0; i < v.NumField(); i++ {
        field := t.Field(i)
        value := v.Field(i)
        fmt.Printf("  Field: %s, Type: %s, Value: %v\n",
            field.Name, field.Type, value.Interface())
    }
}

func main() {
    var animal Animal

    animal = Dog{Name: "Buddy", Age: 3}
    inspectAnimal(animal)

    animal = Cat{Name: "Luna", Color: "Black"}
    inspectAnimal(animal)
}

for i := 0; i < t.NumMethod(); i++ {
    method := t.Method(i)
    fmt.Printf("  Method: %s\n", method.Name)
}