feature: 布局优化

src/core/wrapper/layout/flex/flex.leftrightvertical.center.js

@@ -21,18 +21,19 @@ BI.FlexLeftRightVerticalAdaptLayout = BI.inherit(BI.Layout, {
     render: function () {
         var o = this.options, self = this;
         BI.FlexLeftRightVerticalAdaptLayout.superclass.render.apply(this, arguments);
+        var items = this._formatItems(o.items);
         return {
             type: "bi.flex_vertical_adapt",
             ref: function (_ref) {
                 self.layout = _ref;
             },
-            columnSize: o.columnSize,
-            items: this._formatItems(o.items),
+            columnSize: o.columnSize.slice(0, (o.items.left || []).length).concat((o.items.right || []).length > 0 ? [""] : []),
+            items: items,
             scrollx: o.scrollx,
             scrolly: o.scrolly,
             scrollable: o.scrollable,
             innerHgap: o.innerHgap,
-            innerVgap: o.innerVgap,
+            innerVgap: o.innerVgap
         };
     },