<div class="u-sd-btns">

    <button>同意</button>

    <button class="popup-open" data-popup=".popup-about">拒绝</button>

</div>

<div class="popup popup-about u-sd-pop">

    <textarea v-model="yuanyin"></textarea>

    <button class="u-sd-btn" @click="send">提交</button>

</div>

            send: function () {

                var that = this;

                if(that.yuanyin==''){

                    showAlert(myApp,'请填写拒绝原因');

                }else{

                    myApp.popup.close($('.u-sd-pop'));

                }

            },