示例代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class BeginPanel : BasePanel<BeginPanel>
{
    public UIButton btnBegin;
    public UIButton btnRank;
    public UIButton btnSetting;
    public UIButton btnQuit;    
    protected override void Init()
    {
        btnBegin.onClick.Add(new EventDelegate ( () => 
        {
            //显示武器面板
            print("选角");
            //隐藏自己
            HideMe();
        }));

        btnRank.onClick.Add(new EventDelegate(() =>
        {
            //显示排行榜
            print("排行榜");
        }));

        btnSetting.onClick.Add(new EventDelegate(() =>
        {
            //显示设置面板
            print("设置");
        }));

        btnQuit.onClick.Add(new EventDelegate(() =>
        {
            //退出游戏
            print("退出");
            Application.Quit();
        }));

    }
}