patree.go
func (r *Route) HandleMethod(pat, method string, f ...HandlerFunc) {
	entry := r.addPattern(pat)
	batch := batchRoute(f)
	if err := entry.SetMethodHandler(method, batch); err != nil {
		panic(err)
	}
}
func (r *Route) HandleMethod(pat, method string, f ...HandlerFunc) {
	entry := r.addPattern(pat)
	batch := batchRoute(f)
	if err := entry.SetMethodHandler(method, batch); err != nil {
		panic(err)
	}
}
// HandleMethod registers handler funcs with the given pattern and method.