公告更新修改

@@ -92,10 +92,10 @@ type UpdateBulletinRequest struct {
 	Content    string `json:"content" valid:"Required"`
 	AllowClose int    `json:"allow_close"`
 	//AllowCondition int      `json:"allow_condition"`
-	QuestionSwitch int      `json:"question_switch"`
-	Receiver       []string `json:"receiver" valid:"Required"`
-	Question       Question `json:"question"`
-	Cover          Cover    `json:"cover" valid:"Required"`
+	QuestionSwitch int             `json:"question_switch"`
+	Receiver       []VisibleObject `json:"receiver" valid:"Required"`
+	Question       Question        `json:"question"`
+	Cover          Cover           `json:"cover" valid:"Required"`
 }
 type UpdateBulletinResponse struct {
 }