将附加参数传递给事件处理程序

element.addEventListener('click', function(event) {
  // 附加参数作为函数的参数传递
  handleEvent(event, additionalParam1, additionalParam2);
});

def event_handler_factory(additional_param1, additional_param2):
    def event_handler(event):
        # 在闭包中可以访问附加参数
        handle_event(event, additional_param1, additional_param2)
    return event_handler

element.bind('click', event_handler_factory(additional_param1, additional_param2))

public class CustomEventArgs : EventArgs
{
    public string AdditionalParam1 { get; set; }
    public int AdditionalParam2 { get; set; }
}

public void Event_Handler(object sender, CustomEventArgs e)
{
    // 可以通过事件参数访问附加参数
    handleEvent(e.AdditionalParam1, e.AdditionalParam2);
}

// 触发事件时传递附加参数
CustomEventArgs args = new CustomEventArgs
{
    AdditionalParam1 = "value1",
    AdditionalParam2 = 2
};
eventHandler(this, args);