点击【确定】按钮阻止关闭弹窗
footer-hide = true : 隐藏默认的modal底部,使用slot插入自定义的底部按钮
<Modal title="标题" v-model="modal" :footer-hide=true>
<div slot="footer">
<Button type="ghost">取消</Button>
<Button type="primary" @click="confirmFun">确定</Button>
</div>
</Modal>