如何将按钮添加到用作状态栏菜单的NSMenu中？

import AppKit

class MenuDelegate: NSObject, NSMenuDelegate {
    // 实现菜单项选择的回调方法
    func menu(_ menu: NSMenu, didSelect item: NSMenuItem) {
        // 处理菜单项的选择
        print("选择了菜单项：\(item.title)")
    }
}

// 创建状态栏按钮
let statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.squareLength)
if let button = statusItem.button {
    button.title = "按钮"
}

// 创建菜单
let menu = NSMenu(title: "菜单")

// 创建菜单项
let menuItem1 = NSMenuItem(title: "菜单项1", action: nil, keyEquivalent: "")
let menuItem2 = NSMenuItem(title: "菜单项2", action: nil, keyEquivalent: "")

// 添加菜单项到菜单中
menu.addItem(menuItem1)
menu.addItem(menuItem2)

// 设置菜单的委托
let menuDelegate = MenuDelegate()
menu.delegate = menuDelegate

// 将菜单设置为状态栏按钮的菜单
statusItem.menu = menu