angularjs ui-select如何设置默认选中值，可以采用ng-model来设置，示例如下：

            <div class="col-sm-6">
 
                  <ui-select ng-model="provinces.selected" theme="bootstrap"
 
                        on-select="loadCitys($item,$model)"> <ui-select-match
 
                        placeholder="选择省份">{{$select.selected.name}}</ui-select-match> <ui-select-choices
 
                        repeat="province in provinces  | filter: $select.search">
 
                    <div ng-bind-html="province.name | highlight: $select.search"></div>
 
                    </ui-select-choices> </ui-select>
 
                </div>