diff --git a/backend/main.go b/backend/main.go
index 83de1fd..05b088d 100644
--- a/backend/main.go
+++ b/backend/main.go
@@ -278,4 +278,60 @@ func updateSitesOrderHandler(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusOK)
 }
 
-// 其他处理函数(addSiteHandler, deleteSiteHandler等)保持不变...
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+func addSiteHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var s Site
+	if err := json.NewDecoder(r.Body).Decode(&s); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	// 验证数据
+	if s.Name == "" || s.URL == "" || s.Category == "" {
+		http.Error(w, "Name, URL and Category are required", http.StatusBadRequest)
+		return
+	}
+
+	// 插入数据库
+	res, err := db.Exec("INSERT INTO sites (name, url, icon, category) VALUES (?, ?, ?, ?)",
+		s.Name, s.URL, s.Icon, s.Category)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	id, _ := res.LastInsertId()
+	s.ID = int(id)
+
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(http.StatusCreated)
+	json.NewEncoder(w).Encode(s)
+}
+
+func deleteSiteHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var request struct {
+		ID int `json:"id"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	_, err := db.Exec("DELETE FROM sites WHERE id = ?", request.ID)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	fmt.Fprint(w, `{"status": "success"}`)
+}
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