完成后样式：

下面的代码是我自己项目里面用到的，一些判断看自己情况去掉，用的是element-ui组件
安装 uuid 库。你可以使用 npm 或 yarn 来完成安装。在终端中执行以下命令：

npm install uuid

html部分

<el-upload class="avatar-uploader el-upload--text"
	action="https://upload-cn-east-2.qiniup.com" :limit="3" controlsList="nodownload"
	:show-file-list="false" 
	:on-success="handleVideoSuccess"
	:before-upload="beforeUploadVideo" 
	:on-progress="uploadVideoProcess"
	:http-request="sliderRequest">
	<div style="display: flex;">
		<div v-for="(item,index) in viduploaList" :key="index" style="position: relative;">
			<i class="el-icon-error" 
				@click.stop="delvideo(index)"
				v-if="detailsObj.gvcinfo.examine_status!=21 && detailsObj.gvcinfo.examine_status!=23"
				style="color: #CF0000;font-size: 24px;position: absolute;top: 0;right: 0;">
			</i>
			<video :id="'video'+index" @play="play(index)"
			v-if="viduploaList.length != 0 && videoFlag == false" :src="item"
			controlsList="nodownload" class="avatar" controls="controls">
			您的浏览器不支持视频播放
			</video>
		</div>
		<i v-if="viduploaList.length <3 && videoFlag == false && detailsObj.gvcinfo && detailsObj.gvcinfo.examine_status!=21 && detailsObj.gvcinfo.examine_status!=23"
		class="el-icon-plus avatar-uploader-icon"></i>
	</div>
	<el-progress 
		v-if="videoFlag == true" 
		type="circle" 
		:percentage="videoUploadPercent"
		style="margin-top:30px;">
	</el-progress>
</el-upload>

引入的插件

import { v4 as uuidv4 } from 'uuid'//这个是uuid唯一值 引入命令npm install uuid

data里的值

viduploaList：[],
videoFlag:false

js代码

sliderRequest(upload) {
	const uuid = uuidv4() //这里是获取的唯一值uuid,这里也可以换成时间戳，看情况需要
	const formData = new FormData()
	formData.append('file', upload.file)
	formData.append('key', "七牛云目录名称" + uuid) // key 文件名处理，这样的话七牛会识别文件时什么类型
	//后端接口获取七牛云token
	upload_token().then(ress => {
		formData.append('token', ress.data.token)
		this.$nextTick(() => {
			this.$http.post('七牛云上传地址https', formData).then((
			response) => {
				if (response.status === 200) {
					const res = response.data
					this.handleVideoSuccess(res);
				}
			})
		})
	})
},
// 验证视频格式看自己需求去设置
beforeUploadVideo(file) {
	 if (
	[
	  'video/mp4',
	  'video/ogg',
	  'video/flv',
	  'video/avi',
	  'video/wmv',
	  'video/rmvb'
	].indexOf(file.type) === -1
	 ) {
	this.$message.error('请上传正确的视频格式')
	return false
	 }
},
// 上传进度显示
uploadVideoProcess(event, file, fileList) {
	this.videoFlag = true
	this.videoUploadPercent = Math.floor(event.percent)
},
// 获取上传图片地址
handleVideoSuccess(res, file) {
	this.videoFlag = false
	let vidurl = localStorage.getItem('deploy') + '/' + res.key //这里获取的存储是七牛云视频链接+你上传时自定义文件名就是完整的视频地址
	this.viduploaList = this.viduploaList.concat([vidurl])
},
//删除上传视频
delvideo(index) {
	this.viduploaList.splice(index, 1)
	this.viduploaLista.splice(index, 1)
},
//播放当前视频，其他视频暂停
play(i) {
	this.viduploaList.forEach((item, index) => {
		if (i != index) {
			let idx = 'video' + index
			let vide = document.getElementById(idx)
			vide.pause();
		}
	})
},

css样式

.avatar-uploader-icon {
	border: 1px dashed #d9d9d9 !important;
}

.avatar-uploader .el-upload {
	border: 1px dashed #d9d9d9 !important;
	border-radius: 6px !important;
	position: relative !important;
	overflow: hidden !important;
}

.avatar-uploader .el-upload:hover {
	border: 1px dashed #d9d9d9 !important;
	border-color: #409eff;
}

.avatar-uploader-icon {
	font-size: 28px;
	color: #8c939d;
	width: 300px;
	height: 178px;
	line-height: 178px;
	text-align: center;
	margin-left: 10px;
}