购物车逻辑修改

@@ -207,7 +207,7 @@ $('.yoho-page').on('touchstart', '.chose-panel', function(e) {
                 $siblingBlock.find('.block').eq(i).addClass('zero-stock');
             }
         }
-        numArray = $siblingBlock.find('.chosed').data('numstr').split('/');
+        numArray = ($siblingBlock.find('.chosed').data('numstr') + '').split('/');
         $that.find('.num .left-num').html('剩余' + numArray[index] + '件');
         if (2 === $chosed.closest('.zero-stock').length) {
             $('#chose-btn-sure').css('background-color', '#c0c0c0');