购物车优化

@@ -89,6 +89,9 @@ class ShopcartController extends WeChatBaseController{
         $num = $this->request->param('num',0,'intval');
         $data = Db::name('shopping_cart') -> where('id',$id) -> find();
         if($data['book_num'] != $num){
+            if($num < 1){
+                $this->error('商品数量不能小于1');
+            }
             if($num > 999){
                 $this->error('商品数量不能大于999');
             }
@@ -108,7 +111,7 @@ class ShopcartController extends WeChatBaseController{
 
         $id = $_POST['id'];
         $data = Db::name('shopping_cart') -> where('id',$id) -> find();
-        if($data['book_num']<200){
+        if($data['book_num']<999){
             $res = Db::name('shopping_cart') -> where('id',$id) -> setInc('book_num');
         }
         return true;

@@ -249,11 +249,11 @@
                 $(this).parents(".order_newsCon").find(".order_newsTxt2 span").text(count);
             } else {
                 var count = parseInt($(this).prev().val());
-                if (count < 200) {
+                if (count < 999) {
                     count += 1;
                     $(this).prev().val(count);
                 } else {
-                    alert("商品数量最多为200");
+                    alert("商品数量最多为999");
                 }
                 $(this).parents(".order_newsCon").find(".order_newsTxt2 span").text(count);
             }