特性类

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using UnityEngine;

[Demo(10,Name ="小韩")]
public class NewBehaviourScript : MonoBehaviour
{
    // Start is called before the first frame update
    void Start()
    {
        var testType = GetType();
        //IEnumerable<CustomAttributeData> attrs = testType.CustomAttributes;
        IEnumerable<Attribute> data = testType.GetCustomAttributes(typeof(DemoAttribute)); //获得一组类型为DemoAttribute的特性对象
        var demoData = data.ToList()[0] as DemoAttribute;
        Debug.Log(demoData.Name);
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}

public class DemoAttribute : Attribute
{
    public string Name { get; set; }
    public int Age { get; set; }

    public DemoAttribute(int age)
    {
        Age = age;
    }
}