测试源代码如下:

# -*- coding: utf-8 -*-

from os import path
from time import sleep
from winsystray import SysTrayIcon
from winsystray.win32_adapter import NIIF_USER, NIIF_LARGE_ICON, MFS_DISABLED

app_root = path.dirname(path.realpath(__file__))

def on_right_click(systray):
    build_menu(systray)
    systray._show_menu()

def on_quit(systray):
    global running
    running = False

def on_select(systray):
    '''
    这里怎么知道点击的是哪个菜单呢?

    '''
    
def build_menu(systray):
    global last_main_menu, labs
    
    #print(labs.values())
    main_menu = []
    for k in labs.keys():
        main_menu.append((k, 'pass', MFS_DISABLED))
        for j in labs[k]:
            main_menu.append(('   '+j['Name'], on_select)) # 这里的响应函数怎么传参数呢? 
        main_menu.append((None, '-'))
    main_menu.append((None, '-'))
    main_menu = tuple(main_menu)
    if main_menu != last_main_menu:
        systray.update(menu=main_menu)
        last_main_menu = main_menu

def balloons_info(text, title='通知'):
    my_tray.show_balloon(text, title, NIIF_USER | NIIF_LARGE_ICON)
    
last_main_menu = None
labs={'Sort 1':[{'Name':'Jack', 'Args':'8866'},{'Name':'Bob', 'Args':'9900'}],'Sort 2':[{'Name':'Jams', 'Args':'8686'},{'Name':'John', 'Args':'9090'}]} 
quit_item = '退出', on_quit
icon_pth = path.join(app_root, 'favicon.ico')
my_tray = SysTrayIcon(icon_pth, '测试响应', None, quit_item,
                            left_click=None, right_click=on_right_click)
my_tray.start()

sleep(0.1)
balloons_info('响应测试已经启动。\n\n 右键选择菜单')
running = True
while running:
    sleep(2)

效果如图所示

###问题是

响应函数如何接收参数呢? 或者 响应函数怎么知道点击的是哪个菜单呢?

引用的库 winsystray参见