diff --git a/service/Application/Service/BuyService.class.php b/service/Application/Service/BuyService.class.php
index 909e55030..a8026c773 100755
--- a/service/Application/Service/BuyService.class.php
+++ b/service/Application/Service/BuyService.class.php
@@ -387,6 +387,22 @@ class BuyService
         return self::CartList($params);
     }
 
+    /**
+     * 下订单购物车删除
+     * @author   Devil
+     * @blog     http://gong.gg/
+     * @version  1.0.0
+     * @datetime 2018-10-12T00:42:49+0800
+     * @param   [array]          $params [输入参数]
+     */
+    public static function BuyCartDelete($params = [])
+    {
+        if(isset($params['buy_type']) && $params['buy_type'] == 'cart' && !empty($params['ids']))
+        {
+            M('Cart')->where(['id'=>['in', explode(',', $params['ids'])]])->delete();
+        }
+    }
+
     /**
      * 根据购买类型获取商品列表
      * @author   Devil
@@ -627,8 +643,13 @@ class BuyService
             $m->rollback();
             return DataReturn('订单添加失败', -1);
         }
+
+        // 订单提交成功
         $m->commit();
 
+        // 删除购物车
+        self::BuyCartDelete($params);
+
         // 获取订单信息
         switch($order['status'])
         {
diff --git a/service/Public/Home/Default/Css/Buy.css b/service/Public/Home/Default/Css/Buy.css
index b854d6307..d827e245c 100755
--- a/service/Public/Home/Default/Css/Buy.css
+++ b/service/Public/Home/Default/Css/Buy.css
@@ -141,6 +141,7 @@ ul.address-list, .business-item ul { overflow: hidden; }
   .pay-confirm em { font-size: 12px; }
   .pay-confirm .nav-total-price { color: #d2364c; font-weight: 700; }
   .order-nav { background: #f5f5f5; }
+  .am-footer { padding-bottom: 45px; }
 } 
 
 
diff --git a/service/Public/Home/Default/Js/Buy.js b/service/Public/Home/Default/Js/Buy.js
index 93c1f127d..98f1eaf7f 100755
--- a/service/Public/Home/Default/Js/Buy.js
+++ b/service/Public/Home/Default/Js/Buy.js
@@ -5,6 +5,7 @@ if(!store.enabled)
 } else {
     // 选择缓存key
     var store_address_key = 'store-buy-address-selected-index';
+    var store_use_new_address_status_key = 'store-buy-use-new-address-status-count';
     var store_logistics_key = 'store-lbuy-ogistics-selected-index';
     var store_payment_key = 'store-buy-payment-selected-index';
 }
@@ -14,6 +15,18 @@ $(function()
     // 选中处理
     if(store.enabled)
     {
+        // 是否使用新地址
+        var store_address_use_status = store.get(store_use_new_address_status_key);
+        if(store_address_use_status !== undefined)
+        {
+            // 如果新的地址大于使用新地址标记数量则使用第一个地址
+            if(store_address_use_status < $('ul.address-list li').length)
+            {
+                store.set(store_address_key, 0);
+                store.set(store_use_new_address_status_key, undefined);
+            }
+        }
+
         // 地址
         var store_address_value = store.get(store_address_key);
         if(store_address_value !== undefined)
@@ -84,6 +97,9 @@ $(function()
 
         // 阻止事件冒泡
         e.stopPropagation();
+
+        // 使用新地址标记
+        store.set(store_use_new_address_status_key, $('ul.address-list li').length);
     });
 
     // 阻止事件冒泡
diff --git a/service/Public/Home/Default/Js/Cart.js b/service/Public/Home/Default/Js/Cart.js
index bdcbf4b3c..221e3e493 100755
--- a/service/Public/Home/Default/Js/Cart.js
+++ b/service/Public/Home/Default/Js/Cart.js
@@ -143,7 +143,7 @@ $(function()
     function cart_nav_pop()
     {
         var scroll = $(document).scrollTop();
-        var location = scroll+$(window).height()-65;
+        var location = scroll+$(window).height()-100;
         var bottom = ($(window).width() < 640) ? '49px' : '0';
         if(location < nav_top)
         {