feat:更新图片url路径

lib/models/recipe.dart

@@ -235,6 +235,26 @@ class RecipeDetail {
       _$RecipeDetailFromJson(json);
 
   Map<String, dynamic> toJson() => _$RecipeDetailToJson(this);
+
+  static RecipeDetail getEmpty() {
+    return RecipeDetail(
+      id: 0,
+      name: '',
+      category: '',
+      recommendRate: 0,
+      remark: '',
+      isShare: false,
+      userId: 0,
+      username: '',
+      avatar: '',
+      materialList: [],
+      stepList: [],
+      recordList: [],
+      likeList: [],
+      favouriteList: [],
+      commentList: [],
+    );
+  }
 }
 
 enum ViewType { recipe, calendar, timeline }