Events 事件

使用

    tango.Ctx
}
func (c *EventAction) Get() {
}
func (c *EventAction) Before() {
    c.Write([]byte("before "))
}
func (c *EventAction) After() {
func main() {
    t := tango.Classic()
    t.Use(events.Events())
    t.Get("/", new(EventAction))
    t.Run()