gen/api15gen/param_analyzer.go
func appendSorted(params []*gen.ActionParam, param *gen.ActionParam) []*gen.ActionParam {
	params = append(params, param)
	sort.Sort(gen.ByName(params))
	return params
}
func appendSorted(params []*gen.ActionParam, param *gen.ActionParam) []*gen.ActionParam {
	params = append(params, param)
	sort.Sort(gen.ByName(params))
	return params
}
// Sort action params by name