需求：将后端返回来的文字或者图片和视频展示在页面上。

        <!-- 预览 --><el-dialog title="预览" :visible.sync="dialogPreviewVisible" width="50%" append-to-body :close-on-click-modal="false" @close="PreviewClose"><div style="margin-bottom:5%"><h1>{{previewTitle}}</h1></div><div class="content" v-html="previewContent"></div></el-dialog>// 预览事件previewButton(row){let _this = this;let isNull = validatenull;getDetails(row.id).then((res)=>{if(res.data.code == 0){_this.dialogPreviewVisible = true;console.log(res.data.data,'预览');_this.previewTitle = res.data.data.title_this.previewContent = res.data.data.contentconsole.log(res.data.data.content,'66666');}})},<style scoped lang="scss">.titleClass{display:flex;justify-content: center;}.content{/deep/ p{img{width: 100% !important;}}/deep/ .ql-video{position: static;}}</style>