Select - Option 提交时选中效果

HTML代码

<div class="col-md-6">
    <select ele-type="right-select-ele" name="{{ field.name }}" id="{{ field.name }}_right"
            multiple class="form-control {{ field.name }}">
        {% for obj in selected_m2m_objects %}
            <option value="{{ obj.id }}">{{ obj }}</option>
        {% endfor %}
    </select>
</div>

<div class="form-group">
    <div class="col-md-offset-8">
        <input id="save" type="submit" class="btn btn-success" value="Save">
    </div>
</div>

JQuery代码

    $("#save").click(function () {
        $("select[ele-type='right-select-ele'] option").prop("selected", true);
    });