chore： 优化

src/widget/multiselectlist/multiselectlist.js

@@ -15,7 +15,7 @@ BI.MultiSelectList = BI.inherit(BI.Widget, {
         BI.MultiSelectList.superclass._init.apply(this, arguments);
 
         var self = this, o = this.options;
-        this.storeValue = {};
+        this.storeValue = this._assertValue(o.value || {});
 
         var assertShowValue = function () {
             BI.isKey(self._startValue) && (self.storeValue.type === BI.Selection.All ? BI.remove(self.storeValue.value, self._startValue) : BI.pushDistinct(self.storeValue.value, self._startValue));
@@ -31,6 +31,7 @@ BI.MultiSelectList = BI.inherit(BI.Widget, {
             logic: {
                 dynamic: false
             },
+            value: o.value,
             isDefaultInit: true,
             // onLoaded: o.onLoaded,
             el: {}
@@ -198,6 +199,7 @@ BI.MultiSelectList = BI.inherit(BI.Widget, {
         val || (val = {});
         val.type || (val.type = BI.Selection.Multi);
         val.value || (val.value = []);
+        return val;
     },
 
     _makeMap: function (values) {