做网站要收订金吗seo怎么做优化

// xxx.ets
@Entry
@Component
struct VideoCreateComponent {@State videoSrc: Resource = $rawfile('video1.mp4')@State previewUri: Resource = $r('app.media.poster1')@State curRate: PlaybackSpeed = PlaybackSpeed.Speed_Forward_1_00_X@State isAutoPlay: boolean = false@State showControls: boolean = truecontroller: VideoController = new VideoController()build() {Column() {Video({src: this.videoSrc,previewUri: this.previewUri,currentProgressRate: this.curRate,controller: this.controller}).width('100%').height(600).autoPlay(this.isAutoPlay).controls(this.showControls).onStart(() => {console.info('onStart')}).onPause(() => {console.info('onPause')}).onFinish(() => {console.info('onFinish')}).onError(() => {console.info('onError')}).onPrepared((e) => {console.info('onPrepared is ' + e.duration)}).onSeeking((e) => {console.info('onSeeking is ' + e.time)}).onSeeked((e) => {console.info('onSeeked is ' + e.time)}).onUpdate((e) => {console.info('onUpdate is ' + e.time)})Row() {Button('src').onClick(() => {this.videoSrc = $rawfile('video2.mp4') // 切换视频源}).margin(5)Button('previewUri').onClick(() => {this.previewUri = $r('app.media.poster2') // 切换视频预览海报}).margin(5)Button('controls').onClick(() => {this.showControls = !this.showControls // 切换是否显示视频控制栏}).margin(5)}Row() {Button('start').onClick(() => {this.controller.start() // 开始播放}).margin(5)Button('pause').onClick(() => {this.controller.pause() // 暂停播放}).margin(5)Button('stop').onClick(() => {this.controller.stop() // 结束播放}).margin(5)Button('setTime').onClick(() => {this.controller.setCurrentTime(10, SeekMode.Accurate) // 精准跳转到视频的10s位置}).margin(5)}Row() {Button('rate 0.75').onClick(() => {this.curRate = PlaybackSpeed.Speed_Forward_0_75_X // 0.75倍速播放}).margin(5)Button('rate 1').onClick(() => {this.curRate = PlaybackSpeed.Speed_Forward_1_00_X // 原倍速播放}).margin(5)Button('rate 2').onClick(() => {this.curRate = PlaybackSpeed.Speed_Forward_2_00_X // 2倍速播放}).margin(5)}}}
}