'筛选返回判断'

@@ -199,7 +199,9 @@ class ProductListWithFilter {
                 success: (result) => {
                     this.dataRender(result);
 
+                    if (result && result.length) {
                         cacheStore.set(catchKey, result);
+                    }
                 },
                 error: () => {
                     let $divide = $('.search-divide');