在编辑页面中，select值回显

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1. 在model中

    public function getGenderList()
    {
        return ['3' => __('Unknown'), '2' => __('Woman'),'1' => __('Man')];
    }

2. 在contorller中

public function _initialize()
    {
        parent::_initialize();

        $this->view->assign('genderList',$this->model->getGenderList());
    }

3. 在html中

<div class="form-group">
        <label for="gender" class="control-label col-xs-12 col-sm-2">{:__('Gender')}:</label>
        <div class="col-xs-12 col-sm-8">
            <select id="gender" data-rule="required" class="form-control selectpicker" name="row[gender]">
                {foreach name="genderList" item="vo"}
                <option value="{$key}" {in name="key" value="$row.gender"}selected{/in}>{$vo}</option>
                {/foreach}
            </select>
        </div>
    </div>