vue 动态设置背景图，并撑满容器

<div class="banner-background" :background-image:url(' + url +');'">

</div>

height: 338px;
border-radius: 10px;
background-size: 100% 100%;

export default {
    data(){
        return{
            url: 'https://img0.baidu.com/it/u=1165980809,2600720039&fm=26&fmt=auto'
        }
    }
}