示例图：
一、vue2版本
<template><div class="canvas-video"><canvasref="myCanvasByVideo"class="myCanvas"id="myCanvasByVideo":width="width":height="height"></canvas><div class="btnDiv"><divv-if="!isPlayVideo && !isStartVideo"class="playback"@click.stop="playVideo"><div>回放</div><img src="@/assets/image/play.png" alt="" /></div><divv-if="isPlayVideo && isStartVideo"class="playback"@click.stop="pauseVideo"><div>暂停</div><img src="@/assets/image/pause.png" alt="" /></div><divv-if="!isPlayVideo && isStartVideo"class="playback"@click.stop="continueVideo"><div>继续</div><img src="@/assets/image/play.png" alt="" /></div><div class="rocket"><imgv-show="isRocket"src="@/assets/image/rocket.png"alt=""@click="playRocket"/><imgv-show="!isRocket"src="@/assets/image/rocket_noChoose.png"alt=""@click="playRocket"/></div><div class="mySlider"><el-sliderv-model="nowTime":max="allTime"@change="changeVideoSilder"></el-slider></div><div class="myTime">{{ getFormatTime(nowTime) }} / {{ getFormatTime(allTime) }}</div><div class="mySpeed"><div @click.stop="isShowSpeedBox = !isShowSpeedBox">{{ speedList.filter((item) => item.value === nowSpeed)[0].name }}</div><div class="speedList" v-show="isShowSpeedBox"><divclass="speedItem":class="item.value === nowSpeed ? 'active' : ''"v-for="(item, index) in speedList":key="index"@click.stop="changeSpeed(item.value)">{{ item.name }}</div></div></div></div></div>
</template><script>
export default {name: "canvasVideo",components: {},props: {width: {type: Number,default: 500,},height: {type: Number,default: 500,},lineWidth: {type: Number,default: 1,},backgroundColor: {type: String,default: "black",},color: {type: String,default: "red",},pointData: {type: Array,default: [[{x: 144.42779541015625,y: 112.7576904296875,time: 1702536449825,},],],},},data() {return {canvasHistory: null,myCanvasByVideo: null, // 视频播放画布ctxByVideo: null, // 视频播放画布drawLineTimer: null,drawStepTimer: null,isPlayVideo: false, // 是否正在播放isStartVideo: false, // 是否开始播放nowTime: 0, // 当前播放时间allTime: 0, // 回放总时间nowPoints: [], // 当前学生视频的所有绘制点坐标indexStep: 0, // 当前播放绘制线条的下标indexPoint: 0, // 当前播放绘制点的下标nowTimer: null, // 计算当前播放时间的定时器isShowSpeedBox: false, // 是否展示速度调整列表nowSpeed: 1, // 当前速度speedList: [{name: "3X",value: 3,},{name: "2X",value: "2",},{name: "1.5X",value: 1.5,},{name: "1X",value: 1,},{name: "0.5X",value: 0.5,},],isRocket: false, // 是否快速播放gdbl: 2.4583, // 两种纸的坐标对应比例 小纸 2.4583 = 4720/1920 大纸 2.9167 = 5600/1920};},mounted() { this.nowPoints = this.pointDatathis.initCanvasByVideo();this.allTime = Math.ceil((this.nowPoints[this.nowPoints.length - 1][this.nowPoints[this.nowPoints.length - 1].length - 1].time -this.nowPoints[0][0].time) /1000); // 最后一个坐标的时间 - 第一个坐标的时间},methods: {// 快速播放async playRocket() {// 把所有状态清零this.isPlayVideo = false;this.isStartVideo = false;this.indexStep = 0;this.indexPoint = 0;if (this.nowTimer) {clearInterval(this.nowTimer);}if (this.drawStepTimer) {clearTimeout(this.drawStepTimer);}if (this.drawLineTimer) {clearTimeout(this.drawLineTimer);}this.nowTime = 0;if (this.isRocket) {this.isRocket = false;return;}this.isPlayVideo = false;this.isRocket = true;this.ctxByVideo.strokeStyle = this.color;this.ctxByVideo.translate(0.5, 0.5); // 抗锯齿（好像没得卵用）this.ctxByVideo.antialias = "smooth"; // 抗锯齿（好像没得卵用）this.ctxByVideo.imageSmoothingEnabled = true; // 抗锯齿（好像没得卵用）this.ctxByVideo.lineJoin = "round"; // 设置圆角this.ctxByVideo.lineWidth = this.lineWidth; // 设置粗细this.ctxByVideo.shadowBlur = 1;this.ctxByVideo.shadowColor = this.color;this.ctxByVideo.clearRect(0,0,this.myCanvasByVideo.width,this.myCanvasByVideo.height); // 清空if (this.drawStepTimer) {clearTimeout(this.drawStepTimer);}if (this.drawLineTimer) {clearTimeout(this.drawLineTimer);}for (let j = 0; j < this.nowPoints.length; j++) {this.indexStep = j;this.ctxByVideo.beginPath();let timeout = 0;if (j !== 0) {if (this.nowPoints[j].length && this.nowPoints[j - 1].length) {timeout =this.nowPoints[j][0].time -this.nowPoints[j - 1][this.nowPoints[j - 1].length - 1].time;}}await this.drawStepByRocket(this.nowPoints[j], 50);}this.isRocket = false;},//答题笔迹async playVideo() {if (this.isRocket) {this.isPlayVideo = false;clearInterval(this.nowTimer);clearTimeout(this.drawLineTimer);clearTimeout(this.drawStepTimer);this.myCanvasByVideo.width = this.myCanvasByVideo.width; // 清空this.canvasHistory = null;// 清空操作this.nowTime = 0;this.isPlayVideo = false;this.isStartVideo = false;this.indexStep = 0;this.indexPoint = 0;clearInterval(this.nowTimer);this.canvasHistory = null;if (this.nowTimer) {clearInterval(this.nowTimer);}if (this.drawStepTimer) {clearTimeout(this.drawStepTimer);}if (this.drawLineTimer) {clearTimeout(this.drawLineTimer);}}this.isRocket = false;this.isPlayVideo = true;this.isStartVideo = true;this.ctxByVideo.strokeStyle = this.color;this.ctxByVideo.translate(0.5, 0.5); // 抗锯齿（好像没得卵用）this.ctxByVideo.antialias = "smooth"; // 抗锯齿（好像没得卵用）this.ctxByVideo.imageSmoothingEnabled = true; // 抗锯齿（好像没得卵用）this.ctxByVideo.lineJoin = "round"; // 设置圆角this.ctxByVideo.lineWidth = this.lineWidth; // 设置粗细this.ctxByVideo.shadowBlur = 1;this.ctxByVideo.shadowColor = this.color;this.ctxByVideo.clearRect(0,0,this.myCanvasByVideo.width,this.myCanvasByVideo.height); // 清空this.nowTimer = setInterval(() => {if (this.nowTime < this.allTime) {this.nowTime++;}}, 1000 / this.nowSpeed);for (let j = 0; j < this.nowPoints.length; j++) {this.indexStep = j;this.ctxByVideo.beginPath();let timeout = 0;if (j !== 0) {if (this.nowPoints[j].length && this.nowPoints[j - 1].length) {timeout =this.nowPoints[j][0].time -this.nowPoints[j - 1][this.nowPoints[j - 1].length - 1].time;}}await this.drawStep(this.nowPoints[j], timeout / this.nowSpeed);}this.nowTime = this.allTime;this.isPlayVideo = false;clearInterval(this.nowTimer);},// 暂停播放pauseVideo() {this.isPlayVideo = false;clearInterval(this.nowTimer);clearTimeout(this.drawLineTimer);clearTimeout(this.drawStepTimer);this.ctxByVideo.stroke();},// 继续播放async continueVideo() {if (this.nowTime === this.allTime) {// 播放完了重新播放this.nowTime = 0;this.playVideo();return;}this.isPlayVideo = true;let startIndex = JSON.parse(JSON.stringify(this.indexStep));this.nowTimer = setInterval(() => {if (this.nowTime < this.allTime) {this.nowTime++;}}, 1000 / this.nowSpeed);console.log("从这开始", this.indexStep, this.nowPoints);// this.ctx.moveTo(0, 0)// this.ctx.lineTo(500, 500)// this.ctx.stroke();// this.ctx.closePath();for (let j = startIndex; j < this.nowPoints.length; j++) {this.indexStep = j;let timeout = 0;if (j !== 0) {if (this.nowPoints[j].length && this.nowPoints[j - 1].length) {timeout =this.nowPoints[j][0].time -this.nowPoints[j - 1][this.nowPoints[j - 1].length - 1].time;}}await this.drawStep(this.nowPoints[j], timeout / this.nowSpeed);}this.nowTime = this.allTime;clearInterval(this.nowTimer);this.isPlayVideo = false;},// 改变进度条(根据当前时间获取)async changeVideoSilder() {console.log("改变了");clearInterval(this.nowTimer);clearTimeout(this.drawLineTimer);clearTimeout(this.drawStepTimer);this.ctxByVideo.clearRect(0,0,this.myCanvasByVideo.width,this.myCanvasByVideo.height); // 清空this.ctxByVideo.strokeStyle = this.color;this.ctxByVideo.translate(0.5, 0.5); // 抗锯齿（好像没得卵用）this.ctxByVideo.antialias = "smooth"; // 抗锯齿（好像没得卵用）this.ctxByVideo.imageSmoothingEnabled = true; // 抗锯齿（好像没得卵用）this.ctxByVideo.lineJoin = "round"; // 设置圆角this.ctxByVideo.lineWidth = this.lineWidth; // 设置粗细this.ctxByVideo.shadowBlur = 1;this.ctxByVideo.shadowColor = this.color;let allTime = 0;// 直接把进度条当前定位之前的画出来不加任何延时here: for (let i = 0; i < this.nowPoints.length; i++) {this.ctxByVideo.beginPath();if (i) {allTime +=this.nowPoints[i][0].time -this.nowPoints[i - 1][this.nowPoints[i - 1].length - 1].time;console.log("1级时间", allTime, i);}for (let j = 0; j < this.nowPoints[i].length; j++) {if (j) {allTime +=this.nowPoints[i][j].time - this.nowPoints[i][j - 1].time;console.log("2级时间", allTime, i, j);}if (j !== this.nowPoints[i].length - 1) {this.ctxByVideo.moveTo(this.nowPoints[i][j].x / this.gdbl,this.nowPoints[i][j].y / this.gdbl);this.ctxByVideo.lineTo(this.nowPoints[i][j + 1].x / this.gdbl,this.nowPoints[i][j + 1].y / this.gdbl);this.ctxByVideo.stroke();this.ctxByVideo.closePath();}if (allTime >= this.nowTime * 1000) {this.indexStep = i;this.indexPoint = j;break here;}}}if (this.isPlayVideo) {// 如果是播放状态 则继续播放this.continueVideo();}},drawStep(data, time) {return new Promise((resolve) => {this.drawStepTimer = setTimeout(async () => {let startIndex = JSON.parse(JSON.stringify(this.indexPoint));for (let i = startIndex; i < data.length - 1; i++) {this.indexPoint = i;let timeLine = data[i + 1].time - data[i].time;if (timeLine) {// 点阵笔有很多点位不同但时间相同的点 不做异步处理await this.drawLine(data[i].x / this.gdbl,data[i].y / this.gdbl,data[i + 1].x / this.gdbl,data[i + 1].y / this.gdbl,(data[i].x + data[i + 1].x) / 2 / this.gdbl,(data[i].y + data[i + 1].y) / 2 / this.gdbl,timeLine / this.nowSpeed);} else {this.ctxByVideo.moveTo(data[i].x / this.gdbl,data[i].y / this.gdbl);this.ctxByVideo.lineTo(data[i + 1].x / this.gdbl,data[i + 1].y / this.gdbl);this.ctxByVideo.stroke();this.ctxByVideo.closePath();}}this.indexPoint = 0;this.ctxByVideo.stroke();resolve();}, time);});},// 相同速度播放drawStepByRocket(data, time) {return new Promise((resolve) => {this.drawStepTimer = setTimeout(async () => {let startIndex = JSON.parse(JSON.stringify(this.indexPoint));for (let i = startIndex; i < data.length - 1; i++) {this.indexPoint = i;let timeLine = data[i + 1].time - data[i].time;if (timeLine) {// 点阵笔有很多点位不同但时间相同的点 不做异步处理await this.drawLine(data[i].x / this.gdbl,data[i].y / this.gdbl,data[i + 1].x / this.gdbl,data[i + 1].y / this.gdbl,(data[i].x + data[i + 1].x) / 2 / this.gdbl,(data[i].y + data[i + 1].y) / 2 / this.gdbl,5);} else {this.ctxByVideo.moveTo(data[i].x / this.gdbl,data[i].y / this.gdbl);this.ctxByVideo.lineTo(data[i + 1].x / this.gdbl,data[i + 1].y / this.gdbl);this.ctxByVideo.stroke();this.ctxByVideo.closePath();}}this.indexPoint = 0;this.ctxByVideo.stroke();resolve();}, time);});},drawLine(x1, y1, x2, y2, controlX, controlY, time) {return new Promise((resolve) => {this.drawLineTimer = setTimeout(() => {this.ctxByVideo.moveTo(x1, y1);this.ctxByVideo.lineTo(x2, y2);// this.ctx.quadraticCurveTo(controlX, controlY, x2, y2)this.ctxByVideo.stroke();this.ctxByVideo.closePath();resolve();}, time);});},// 改变播放速度changeSpeed(speed) {this.nowSpeed = speed;this.isShowSpeedBox = false;if (this.nowTimer) {clearInterval(this.nowTimer);if (this.isPlayVideo) {this.nowTimer = setInterval(() => {if (this.nowTime < this.allTime) {this.nowTime++;}}, 1000 / this.nowSpeed);}}},getFormatTime(second) {let theTime:any = parseInt(second)// 秒let theTime1:any = 0// 分let theTime2:any = 0// 小时if (theTime > 60) {theTime1 = (theTime / 60).toFixed(0)theTime = (theTime % 60).toFixed(0)if (theTime1 > 60) {theTime2 = (theTime1 / 60).toFixed(0)theTime1 = (theTime1 % 60).toFixed(0)}}let result:any = "" + theTimeif(result < 10){result = '0' + result}if (theTime1 > 0) {result = "" + parseInt(theTime1) + ":" + resultif(theTime1 < 10){result = '0' + result}} else{result = '00:' + result}if (theTime2 > 0) {result = "" + parseInt(theTime2) + ":" + resultif(theTime2 < 10){result = '0' + result}} else{result = '00:' + result}return result},initCanvasByVideo() {this.myCanvasByVideo = document.getElementById("myCanvasByVideo");this.ctxByVideo = this.myCanvasByVideo.getContext("2d");}}
};
</script><style lang="scss" scoped>
.canvas-video {width: 100%;height: 100%;.myCanvas {background: black;}.btnDiv {display: flex;justify-content: center;margin-top: 5px;.playback {display: flex;justify-content: space-between;color: #ffffff;text-align: center;padding: 0 15px;border-radius: 4px;background: #00b386;height: 28px;line-height: 28px;cursor: pointer;img {width: 10px;height: 14px;margin-top: 7px;margin-left: 12px;}}.rocket {margin-top: 3px;margin-left: 10px;cursor: pointer;}.mySlider {width: 500px;margin-left: 20px;::v-deep .el-slider__bar {border-radius: 17px;background: #00b386;}::v-deep .el-slider__button {border: 1px solid #00b386;}::v-deep .el-slider__runway {border-radius: 17px;background: #444;}}.myTime {margin-left: 14px;color: #a9a9a9;line-height: 35px;}.mySpeed {cursor: pointer;position: relative;border-radius: 2px;background: #ef8714;width: 60px;height: 20px;line-height: 20px;text-align: center;color: #ffffff;margin-left: 20px;margin-top: 5px;.speedList {position: absolute;bottom: 20px;border-radius: 2px;background: #232322;padding: 10px 0;width: 60px;.speedItem {width: 100%;text-align: center;margin-bottom: 10px;color: #ffffff;}.speedItem.active {color: #ef8714;font-size: 14px;}.speedItem:last-child {margin-bottom: 0px;}z-index: 2000;}}.slider-warpper {width: 320px;height: 16px;position: absolute;left: 280px;// background: #ef9e00 !important;display: flex;justify-content: center;align-items: center;flex-direction: column;.slider-content {width: 304px;height: 16px;background: #2d2d2d;border: 1px solid rgba(255, 186, 33, 0.16);border-radius: 22px;position: relative;.slider {border-radius: 22px;position: absolute;left: 0;top: 0;width: 30px;height: 16px;background: #ffba21;}}.persent {margin-left: 10px;color: #ffba21;font-size: 18px;font-weight: 600;letter-spacing: 1.26px;}}}
}
</style>
二、vue3版本
<template><div class="canvas-video" :style="{width:props.width+'px',height:props.height+'px'}"><img :src="props.backgroundColor" alt=""><canvas ref="myCanvasByVideo" class="myCanvas" id="myCanvasByVideo" :width="props.width"></canvas></div><div class="btnDiv"><div v-if="!state.isPlayVideo && !state.isStartVideo" class="playback" @click.stop="playVideo"><div>回放</div></div><div v-if="state.isPlayVideo && state.isStartVideo" class="playback" @click.stop="pauseVideo"><div>暂停</div></div><div v-if="!state.isPlayVideo && state.isStartVideo" class="playback" @click.stop="continueVideo"><div>继续</div></div><div class="mySlider"><el-slider v-model="state.nowTime" :max="state.allTime" @change="changeVideoSilder" :show-tooltip="false"></el-slider></div><div class="myTime">{{getFormatTime(state.nowTime)}} / {{getFormatTime(state.allTime)}}</div><!-- <div class="rocket playback"><div v-show="!state.isRocket" @click="playRocket">快速回播</div><div v-show="state.isRocket" @click="playRocket">暂停播放</div></div> --><div class="mySpeed"><div @click.stop="state.isShowSpeedBox = !state.isShowSpeedBox">{{state.speedList.filter((item:any) => item.value === state.nowSpeed)[0].name}}</div><div class="speedList" v-show="state.isShowSpeedBox"><div class="speedItem" :class="item.value === state.nowSpeed ? 'active' : ''" v-for="(item, index) in state.speedList" :key="index" @click.stop="changeSpeed(item.value)">{{item.name}}</div></div></div></div>
</template><script setup lang="ts">
import { onMounted, reactive } from 'vue'
type TProps = {width: numberheight: number,lineWidth: number,backgroundColor: string,color: string,pointData: any
}
const props = withDefaults(defineProps<TProps>(), {})const state = reactive<any>({timeout:0,minute:0,second:0,canvasHistory: null,myCanvasByVideo: null, // 视频播放画布ctxByVideo: null, // 视频播放画布drawLineTimer: null,drawStepTimer: null,isPlayVideo: false, // 是否正在播放isStartVideo: false, // 是否开始播放nowTime: 0, // 当前播放时间allTime: 0, // 回放总时间nowPoints: [], // 当前学生视频的所有绘制点坐标indexStep: 0, // 当前播放绘制线条的下标indexPoint: 0, // 当前播放绘制点的下标nowTimer: null, // 计算当前播放时间的定时器isShowSpeedBox: false, // 是否展示速度调整列表nowSpeed: 1, // 当前速度speedList: [{name: '3X',value: 3}, {name: '2X',value: '2'}, {name: '1.5X',value: 1.5}, {name: '1X',value: 1}, {name: '0.5X',value: 0.5}],isRocket: false, // 是否快速播放gdbl: 2.4583 // 两种纸的坐标对应比例 小纸 2.4583 = 4720/1920 大纸 2.9167 = 5600/1920
})onMounted(()=> {state.nowPoints = props.pointDatainitCanvasByVideo()state.allTime = Math.ceil((state.nowPoints[state.nowPoints.length - 1][state.nowPoints[state.nowPoints.length - 1].length - 1].time - state.nowPoints[0][0].time) / 1000) // 最后一个坐标的时间 - 第一个坐标的时间
})
// 快速播放
const playRocket = async () => {// 把所有状态清零state.isPlayVideo = falsestate.isStartVideo = falsestate.indexStep = 0state.indexPoint = 0if (state.nowTimer) {clearInterval(state.nowTimer)}if (state.drawStepTimer) {clearTimeout(state.drawStepTimer)}if (state.drawLineTimer) {clearTimeout(state.drawLineTimer)}state.nowTime = 0if (state.isRocket) {state.isRocket = falsereturn}state.isPlayVideo = falsestate.isRocket = truestate.ctxByVideo.strokeStyle = props.colorstate.ctxByVideo.translate(0.5, 0.5) // 抗锯齿（好像没得卵用）state.ctxByVideo.antialias = 'smooth' // 抗锯齿（好像没得卵用）state.ctxByVideo.imageSmoothingEnabled = true // 抗锯齿（好像没得卵用）state.ctxByVideo.lineJoin = 'round' // 设置圆角state.ctxByVideo.lineWidth = props.lineWidth // 设置粗细state.ctxByVideo.shadowBlur = 1;state.ctxByVideo.shadowColor = props.color;state.ctxByVideo.clearRect(0, 0, state.myCanvasByVideo.width, state.myCanvasByVideo.height); // 清空if (state.drawStepTimer) {clearTimeout(state.drawStepTimer)}if (state.drawLineTimer) {clearTimeout(state.drawLineTimer)}for (let j = 0; j < state.nowPoints.length; j++) {state.indexStep = jstate.ctxByVideo.beginPath();state.timeout = 0if (j !== 0) {if (state.nowPoints[j].length && state.nowPoints[j - 1].length) {state.timeout = state.nowPoints[j][0].time - state.nowPoints[j - 1][state.nowPoints[j - 1].length - 1].time}}await drawStepByRocket(state.nowPoints[j], 50)}state.isRocket = false
}
//答题笔迹
const playVideo = async () => {if (state.isRocket) {state.isPlayVideo = falseclearInterval(state.nowTimer)clearTimeout(state.drawLineTimer)clearTimeout(state.drawStepTimer)state.myCanvasByVideo.width = state.myCanvasByVideo.width // 清空state.canvasHistory = null// 清空操作state.nowTime = 0state.isPlayVideo = falsestate.isStartVideo = falsestate.indexStep = 0state.indexPoint = 0clearInterval(state.nowTimer)state.canvasHistory = nullif (state.nowTimer) {clearInterval(state.nowTimer)}if (state.drawStepTimer) {clearTimeout(state.drawStepTimer)}if (state.drawLineTimer) {clearTimeout(state.drawLineTimer)}}state.isRocket = falsestate.isPlayVideo = truestate.isStartVideo = truestate.ctxByVideo.strokeStyle = props.colorstate.ctxByVideo.translate(0.5, 0.5) // 抗锯齿（好像没得卵用）state.ctxByVideo.antialias = 'smooth' // 抗锯齿（好像没得卵用）state.ctxByVideo.imageSmoothingEnabled = true // 抗锯齿（好像没得卵用）state.ctxByVideo.lineJoin = 'round' // 设置圆角state.ctxByVideo.lineWidth = props.lineWidth // 设置粗细state.ctxByVideo.shadowBlur = 1;state.ctxByVideo.shadowColor = props.color;state.ctxByVideo.clearRect(0, 0, state.myCanvasByVideo.width, state.myCanvasByVideo.height); // 清空state.nowTimer = setInterval(()=> {if (state.nowTime < state.allTime) {state.nowTime++}}, 1000 / state.nowSpeed)for (let j = 0; j < state.nowPoints.length; j++) {state.indexStep = jstate.ctxByVideo.beginPath();state.timeout = 0if (j !== 0) {if (state.nowPoints[j].length && state.nowPoints[j - 1].length) {state.timeout = state.nowPoints[j][0].time - state.nowPoints[j - 1][state.nowPoints[j - 1].length - 1].time}}await drawStep(state.nowPoints[j], props.lineWidth / state.nowSpeed)}state.nowTime = JSON.parse(JSON.stringify(state.allTime))state.isPlayVideo = falseclearInterval(state.nowTimer)
}
// 暂停播放
const pauseVideo = () => {state.isPlayVideo = falseclearInterval(state.nowTimer)clearTimeout(state.drawLineTimer)clearTimeout(state.drawStepTimer)state.ctxByVideo.stroke()
}
// 继续播放
const continueVideo = async () => {if (state.nowTime === state.allTime) { // 播放完了重新播放state.nowTime = JSON.parse(JSON.stringify(state.allTime))pauseVideo()state.isPlayVideo = falsestate.isStartVideo = falsestate.isRocket = truereturn}state.isPlayVideo = truelet startIndex = JSON.parse(JSON.stringify(state.indexStep))state.nowTimer = setInterval(()=> {if (state.nowTime < state.allTime) {state.nowTime++}}, 1000 / state.nowSpeed)console.log('从这开始', state.indexStep, state.nowPoints)// state.ctx.moveTo(0, 0)// state.ctx.lineTo(500, 500)// state.ctx.stroke();// state.ctx.closePath();for (let j = startIndex; j < state.nowPoints.length; j++) {state.indexStep = jstate.timeout = 0if (j !== 0) {if (state.nowPoints[j].length && state.nowPoints[j - 1].length) {state.timeout = state.nowPoints[j][0].time - state.nowPoints[j - 1][state.nowPoints[j - 1].length - 1].time}}await drawStep(state.nowPoints[j], state.timeout / state.nowSpeed)}state.nowTime = JSON.parse(JSON.stringify(state.allTime))clearInterval(state.nowTimer)state.isPlayVideo = false
}
// 改变进度条(根据当前时间获取)
const changeVideoSilder = () => {console.log('改变了')clearInterval(state.nowTimer)clearTimeout(state.drawLineTimer)clearTimeout(state.drawStepTimer)state.ctxByVideo.clearRect(0, 0, state.myCanvasByVideo.width, state.myCanvasByVideo.height); // 清空state.ctxByVideo.strokeStyle = props.colorstate.ctxByVideo.translate(0.5, 0.5) // 抗锯齿（好像没得卵用）state.ctxByVideo.antialias = 'smooth' // 抗锯齿（好像没得卵用）state.ctxByVideo.imageSmoothingEnabled = true // 抗锯齿（好像没得卵用）state.ctxByVideo.lineJoin = 'round' // 设置圆角state.ctxByVideo.lineWidth = props.lineWidth // 设置粗细state.ctxByVideo.shadowBlur = 1;state.ctxByVideo.shadowColor = props.color;let allTime = 0// 直接把进度条当前定位之前的画出来不加任何延时here: for (let i = 0;i < state.nowPoints.length;i++) {state.ctxByVideo.beginPath();if (i) {allTime += (state.nowPoints[i][0].time - state.nowPoints[i - 1][state.nowPoints[i - 1].length - 1].time)// console.log('1级时间', allTime, i)}for (let j = 0;j < state.nowPoints[i].length;j++) {if (j) {allTime += (state.nowPoints[i][j].time - state.nowPoints[i][j - 1].time)// console.log('2级时间', allTime, i, j)}if (j !== state.nowPoints[i].length - 1) {state.ctxByVideo.moveTo(state.nowPoints[i][j].x / state.gdbl, state.nowPoints[i][j].y / state.gdbl)state.ctxByVideo.lineTo(state.nowPoints[i][j+1].x / state.gdbl, state.nowPoints[i][j+1].y / state.gdbl)state.ctxByVideo.stroke();state.ctxByVideo.closePath();}if (allTime >= (state.nowTime * 1000)) {state.indexStep = istate.indexPoint = jbreak here}}}if (state.isPlayVideo) { // 如果是播放状态 则继续播放continueVideo()}
}
const drawStep = (data:any, time:any) => {return new Promise((resolve) => {state.drawStepTimer = setTimeout(async () => {let startIndex = JSON.parse(JSON.stringify(state.indexPoint))for (let i = startIndex; i < data.length - 1; i++) {state.indexPoint = ilet timeLine = data[i + 1].time - data[i].timeif (timeLine) { // 点阵笔有很多点位不同但时间相同的点 不做异步处理await drawLine(data[i].x / state.gdbl, data[i].y / state.gdbl, data[i + 1].x / state.gdbl, data[i + 1].y / state.gdbl, (data[i].x + data[i + 1].x) / 2 / state.gdbl, (data[i].y + data[i + 1].y) / 2 / state.gdbl, timeLine / state.nowSpeed)} else {state.ctxByVideo.moveTo(data[i].x / state.gdbl, data[i].y / state.gdbl)state.ctxByVideo.lineTo(data[i + 1].x / state.gdbl, data[i + 1].y / state.gdbl)state.ctxByVideo.stroke()state.ctxByVideo.closePath()}}state.indexPoint = 0state.ctxByVideo.stroke();resolve()}, time)})
}
// 相同速度播放
const drawStepByRocket = (data:any, time:any) => {return new Promise((resolve) => {state.drawStepTimer = setTimeout(async () => {let startIndex = JSON.parse(JSON.stringify(state.indexPoint))for (let i = startIndex; i < data.length - 1; i++) {state.indexPoint = ilet timeLine = data[i + 1].time - data[i].timeif (timeLine) { // 点阵笔有很多点位不同但时间相同的点 不做异步处理await drawLine(data[i].x / state.gdbl, data[i].y / state.gdbl, data[i + 1].x / state.gdbl, data[i + 1].y / state.gdbl, (data[i].x + data[i + 1].x) / 2 / state.gdbl, (data[i].y + data[i + 1].y) / 2 / state.gdbl, 5)} else {state.ctxByVideo.moveTo(data[i].x / state.gdbl, data[i].y / state.gdbl)state.ctxByVideo.lineTo(data[i + 1].x / state.gdbl, data[i + 1].y / state.gdbl)state.ctxByVideo.stroke()state.ctxByVideo.closePath()}}state.indexPoint = 0state.ctxByVideo.stroke();resolve()}, time)})
}
const drawLine = (x1:any, y1:any, x2:any, y2:any, controlX:any, controlY:any, time:any) => {return new Promise((resolve) => {state.drawLineTimer = setTimeout(() => {state.ctxByVideo.moveTo(x1, y1)state.ctxByVideo.lineTo(x2, y2)// state.ctx.quadraticCurveTo(controlX, controlY, x2, y2)state.ctxByVideo.stroke();state.ctxByVideo.closePath();resolve()}, time)})
}
// 改变播放速度
const changeSpeed = (speed:any) => {state.nowSpeed = speedstate.isShowSpeedBox = falseif (state.nowTimer) {clearInterval(state.nowTimer)if (state.isPlayVideo) {state.nowTimer = setInterval(()=> {if (state.nowTime < state.allTime) {state.nowTime++}}, 1000 / state.nowSpeed)}}
}
const getFormatTime = (allSecond: any) => {let theTime:any = parseInt(allSecond)// 秒let theTime1:any = 0// 分let theTime2:any = 0// 小时if (theTime > 60) {theTime1 = (theTime / 60).toFixed(0)theTime = (theTime % 60).toFixed(0)if (theTime1 > 60) {theTime2 = (theTime1 / 60).toFixed(0)theTime1 = (theTime1 % 60).toFixed(0)}}let result:any = "" + theTimeif(result < 10){result = '0' + result}if (theTime1 > 0) {result = "" + parseInt(theTime1) + ":" + resultif(theTime1 < 10){result = '0' + result}} else{result = '00:' + result}if (theTime2 > 0) {result = "" + parseInt(theTime2) + ":" + resultif(theTime2 < 10){result = '0' + result}} else{result = '00:' + result}return result
}
const initCanvasByVideo = () => {state.myCanvasByVideo = document.getElementById("myCanvasByVideo")state.ctxByVideo = state.myCanvasByVideo.getContext("2d")
}
</script><style lang="scss" scoped>
.canvas-video{width: 100%;height: 100%;background: white;// .myCanvas{// z-index: 99;// }overflow-x: none;overflow-y: scroll;&::-webkit-scrollbar{width: 6px;height: 0;}&::-webkit-scrollbar-thumb{border-radius: 20px;background: #ddd;}img{max-width: 100%;}
}
.btnDiv{display: flex;align-items: center;justify-content: center;margin-top: 20px;.playback{display: flex;justify-content: space-between;color: #ffffff;text-align: center;padding: 0 20px;height: 40px;line-height: 40px;border-radius: 4px;border: 1px solid #00B386;font-size: 20px;cursor: pointer;img{width: 10px;height: 14px;margin-top: 7px;margin-left: 12px;}}.rocket{margin-top: 3px;margin-left: 10px;cursor: pointer;}:deep(.mySlider){width: 500px;margin-left: 20px;.el-slider__bar{border-radius: 17px;background: #00B386;}.el-slider__button{border: 1px solid #00B386;}.el-slider__runway{border-radius: 17px;background: #444;}}.myTime{margin-left: 14px;color: #A9A9A9;line-height: 35px;font-size: 18px;}.mySpeed{cursor: pointer;position: relative;border-radius: 2px;background: #EF8714;width: 80px;height: 40px;line-height: 40px;text-align: center;color: #ffffff;margin: 5px 0 0 20px;font-size: 18px;.speedList{position: absolute;bottom: 40px;border-radius: 2px;background: #232322;padding: 10px 0;width: 80px;.speedItem{width: 100%;text-align: center;margin-bottom: 10px;color: #FFFFFF;}.speedItem.active{color: #EF8714;font-size: 20px;}.speedItem:last-child{margin-bottom: 0px;}z-index: 2000;}}.slider-warpper {width: 320px;height: 16px;position: absolute;left: 280px;// background: #ef9e00 !important;display: flex;justify-content: center;align-items: center;flex-direction: column;.slider-content {width: 304px;height: 16px;background: #2D2D2D;border: 1px solid rgba(255, 186, 33, 0.16);border-radius: 22px;position: relative;.slider {border-radius: 22px;position: absolute;left: 0;top: 0;width: 30px;height: 16px;background: #FFBA21;}}.persent {margin-left: 10px;color: #FFBA21;font-size: 18px;font-weight: 600;letter-spacing: 1.26px;}}
}
.dialog-btn{display: flex;justify-content: center;.btn1{border: 1px solid #00B386;background: #00B386;text-align: center;margin-right: 50px;color: #FFF;color: #fff;font-size: 18px;padding: 10px 65px;cursor: pointer;&:active{opacity: 0.8;}}.btn2{border: 1px solid #00B386;color: #fff;font-size: 18px;text-align: center;padding: 10px 65px;cursor: pointer;&:active{opacity: 0.8;}}
}
</style>三、页面调用
1、vue2
（1）安装 canvasvideo-vue
npm install canvasvideo-vue --save（2）main.js引入
import { createApp } from 'vue'
import App from './App.vue'
import canvasVideo from "canvasvideo-vue"
import "../node_modules/canvasvideo-vue/canvasVideo-vue.css"const app = createApp(App)
app.use(canvasVideo)
.mount("#app")
（3）页面调用
<canvas-video :width="1220" :height="500" :backgroundColor="'blue'" :color="'red'" :lineWidth="1" :pointData="backPlayList" />2、vue3
（1）页面调用
<canvas-video :width="1220" :height="500" :backgroundColor="'blue'" :color="'red'" :lineWidth="1" :pointData="backPlayList" /><script setup lang="ts">
import { ref } from 'vue'
import CanvasVideo from "./components/CanvasVideo.vue"const backPlayList = ref<any[]>([])// backPlayList 去接收处理后台返回的数据
</script>（2）调整字号：其中整体坐标展示后，文字会显示的很小，使用x,y轴去乘倍数即可
backPlayList.value.map((item:any) => {item.x = item.x * 2item.y = item.y * 2return item
})四、数据结构
let datas = [[{"x": 144.42779541015625,"y": 112.7576904296875,"time": 1702536449825},{"x": 144.42779541015625,"y": 122.65827941894531,"time": 1702536449857},{"x": 144.42779541015625,"y": 128.27886962890625,"time": 1702536449871},{"x": 144.42779541015625,"y": 134.2593231201172,"time": 1702536449889},{"x": 144.42779541015625,"y": 146.72254943847656,"time": 1702536449939},{"x": 144.42779541015625,"y": 157.4418182373047,"time": 1702536449955},{"x": 145.78329467773438,"y": 162.1194610595703,"time": 1702536449971},{"x": 145.76043701171875,"y": 167.31605529785156,"time": 1702536449989},{"x": 146.4267578125,"y": 172.4877471923828,"time": 1702536450007},{"x": 146.4267578125,"y": 177.4159698486328,"time": 1702536450020},{"x": 146.4267578125,"y": 182.0648651123047,"time": 1702536450039},{"x": 147.09307861328125,"y": 187.20314025878906,"time": 1702536450053},{"x": 147.762451171875,"y": 192.70411682128906,"time": 1702536450070},{"x": 148.41329956054688,"y": 197.30494689941406,"time": 1702536450088},{"x": 149.09210205078125,"y": 202.69898986816406,"time": 1702536450103},{"x": 149.7584228515625,"y": 207.8609161376953,"time": 1702536450121},{"x": 150.42477416992188,"y": 212.64430236816406,"time": 1702536450140},{"x": 151.09112548828125,"y": 217.8363494873047,"time": 1702536450158},{"x": 151.09112548828125,"y": 223.17628479003906,"time": 1702536450178},{"x": 151.7574462890625,"y": 229.3798065185547,"time": 1702536450194},{"x": 151.7574462890625,"y": 234.6603240966797,"time": 1702536450204},{"x": 151.7574462890625,"y": 239.9730987548828,"time": 1702536450221},{"x": 151.7574462890625,"y": 245.2152862548828,"time": 1702536450246},{"x": 151.7574462890625,"y": 251.24928283691406,"time": 1702536450257},{"x": 151.09112548828125,"y": 257.2041473388672,"time": 1702536450270},{"x": 151.09112548828125,"y": 261.8277130126953,"time": 1702536450288},{"x": 151.09112548828125,"y": 267.2612762451172,"time": 1702536450308},{"x": 151.09112548828125,"y": 273.2233123779297,"time": 1702536450322},{"x": 151.09112548828125,"y": 279.8961639404297,"time": 1702536450342},{"x": 151.09112548828125,"y": 285.8682403564453,"time": 1702536450358},{"x": 152.39996337890625,"y": 291.18141174316406,"time": 1702536450370},{"x": 153.7384033203125,"y": 297.18141174316406,"time": 1702536450389},{"x": 155.09494018554688,"y": 303.9618377685547,"time": 1702536450405},{"x": 156.41146850585938,"y": 309.8865203857422,"time": 1702536450420},{"x": 158.44903564453125,"y": 314.70338439941406,"time": 1702536450442},{"x": 161.03179931640625,"y": 319.8107147216797,"time": 1702536450455},{"x": 163.73126220703125,"y": 325.8739776611328,"time": 1702536450473},{"x": 165.68637084960938,"y": 331.1151580810547,"time": 1702536450488},{"x": 168.38128662109375,"y": 336.5032501220703,"time": 1702536450503},{"x": 171.0692138671875,"y": 341.2170867919922,"time": 1702536450521},{"x": 173.73162841796875,"y": 345.2093963623047,"time": 1702536450538},{"x": 176.42041015625,"y": 348.57081604003906,"time": 1702536450554},{"x": 179.12631225585938,"y": 351.2758026123047,"time": 1702536450571},{"x": 181.71502685546875,"y": 353.8636932373047,"time": 1702536450588},{"x": 184.35678100585938,"y": 355.19776916503906,"time": 1702536450605},{"x": 187.10076904296875,"y": 356.5692901611328,"time": 1702536450621},{"x": 188.40576171875,"y": 357.2216033935547,"time": 1702536450636}],[{"x": 278.3201904296875,"y": 225.33656311035156,"time": 1702536451411},{"x": 290.136962890625,"y": 225.3314971923828,"time": 1702536451431},{"x": 305.58203125,"y": 225.9976043701172,"time": 1702536451442},{"x": 319.9619140625,"y": 225.9976043701172,"time": 1702536451457},{"x": 331.8698425292969,"y": 226.6862030029297,"time": 1702536451472},{"x": 342.2525329589844,"y": 227.32032775878906,"time": 1702536451488},{"x": 351.42987060546875,"y": 227.32984924316406,"time": 1702536451504},{"x": 361.1939697265625,"y": 227.32984924316406,"time": 1702536451521},{"x": 370.506103515625,"y": 226.6363983154297,"time": 1702536451540},{"x": 377.578857421875,"y": 226.01075744628906,"time": 1702536451585},{"x": 396.9224853515625,"y": 223.3396759033203,"time": 1702536451589},{"x": 404.81201171875,"y": 222.0262908935547,"time": 1702536451603},{"x": 412.2171630859375,"y": 220.68153381347656,"time": 1702536451621},{"x": 418.94720458984375,"y": 219.33851623535156,"time": 1702536451637},{"x": 424.103515625,"y": 218.0503692626953,"time": 1702536451654},{"x": 429.489013671875,"y": 218.00428771972656,"time": 1702536451671},{"x": 433.5123291015625,"y": 218.00428771972656,"time": 1702536451687},{"x": 436.1656494140625,"y": 217.33815002441406,"time": 1702536451703},{"x": 438.26458740234375,"y": 217.33815002441406,"time": 1702536451720},{"x": 439.58154296875,"y": 217.33815002441406,"time": 1702536451740},{"x": 439.613525390625,"y": 217.33815002441406,"time": 1702536451761}],[{"x": 359.6776123046875,"y": 148.3515167236328,"time": 1702536452241},{"x": 360.95751953125,"y": 166.9501495361328,"time": 1702536452258},{"x": 361.6524658203125,"y": 186.5827178955078,"time": 1702536452270},{"x": 362.3128662109375,"y": 203.9375762939453,"time": 1702536452288},{"x": 362.9931640625,"y": 218.0919647216797,"time": 1702536452306},{"x": 364.331787109375,"y": 232.8119354248047,"time": 1702536452320},{"x": 364.984130859375,"y": 247.2077178955078,"time": 1702536452337},{"x": 365.6175537109375,"y": 260.9715118408203,"time": 1702536452354},{"x": 366.2884521484375,"y": 275.6442413330078,"time": 1702536452371},{"x": 367.6258544921875,"y": 289.0420379638672,"time": 1702536452390},{"x": 368.8919677734375,"y": 301.1228790283203,"time": 1702536452403},{"x": 370.292724609375,"y": 313.0811309814453,"time": 1702536452421},{"x": 372.9156494140625,"y": 323.0240936279297,"time": 1702536452438},{"x": 374.9552001953125,"y": 330.4568634033203,"time": 1702536452455},{"x": 377.5841064453125,"y": 337.0873565673828,"time": 1702536452471},{"x": 378.9256591796875,"y": 342.3609161376953,"time": 1702536452488},{"x": 380.2994384765625,"y": 347.8545379638672,"time": 1702536452505},{"x": 381.62762451171875,"y": 351.8480682373047,"time": 1702536452520},{"x": 382.308837890625,"y": 354.4903106689453,"time": 1702536452545},{"x": 382.308837890625,"y": 354.55714416503906,"time": 1702536452556}],[{"x": 586.8844604492188,"y": 151.2805633544922,"time": 1702536453141},{"x": 585.511962890625,"y": 165.02943420410156,"time": 1702536453157},{"x": 584.8742065429688,"y": 183.56068420410156,"time": 1702536453173},{"x": 584.8742065429688,"y": 201.2294158935547,"time": 1702536453188},{"x": 584.8742065429688,"y": 215.3689422607422,"time": 1702536453204},{"x": 584.8742065429688,"y": 230.58912658691406,"time": 1702536453222},{"x": 585.54052734375,"y": 243.74464416503906,"time": 1702536453239},{"x": 586.8107299804688,"y": 256.01344299316406,"time": 1702536453256},{"x": 587.5194091796875,"y": 267.7810821533203,"time": 1702536453271},{"x": 588.8597412109375,"y": 279.1865692138672,"time": 1702536453288},{"x": 590.2003784179688,"y": 289.90699768066406,"time": 1702536453304},{"x": 591.52001953125,"y": 301.1284942626953,"time": 1702536453321},{"x": 592.8444213867188,"y": 311.0792694091797,"time": 1702536453339},{"x": 594.8500366210938,"y": 320.5182342529297,"time": 1702536453355},{"x": 596.1693115234375,"y": 328.3832244873047,"time": 1702536453371},{"x": 597.5363159179688,"y": 336.58277893066406,"time": 1702536453390},{"x": 598.8732299804688,"y": 343.2628936767578,"time": 1702536453404},{"x": 600.2008666992188,"y": 348.56568908691406,"time": 1702536453420},{"x": 600.8662109375,"y": 353.1544647216797,"time": 1702536453438},{"x": 600.8662109375,"y": 356.4942169189453,"time": 1702536453454},{"x": 600.8662109375,"y": 358.5269012451172,"time": 1702536453472},{"x": 600.8662109375,"y": 358.5537872314453,"time": 1702536453482}],[{"x": 679.638916015625,"y": 223.9750518798828,"time": 1702536453873},{"x": 698.049560546875,"y": 220.69044494628906,"time": 1702536453889},{"x": 715.046142578125,"y": 218.70338439941406,"time": 1702536453912},{"x": 731.1329956054688,"y": 217.30799865722656,"time": 1702536453922},{"x": 743.7023315429688,"y": 216.6453094482422,"time": 1702536453939},{"x": 755.0431518554688,"y": 216.6720428466797,"time": 1702536453957},{"x": 764.043701171875,"y": 216.6720428466797,"time": 1702536453972},{"x": 770.6744995117188,"y": 216.6720428466797,"time": 1702536453988},{"x": 776.098388671875,"y": 216.6720428466797,"time": 1702536454005},{"x": 780.066650390625,"y": 216.6720428466797,"time": 1702536454021},{"x": 783.4193115234375,"y": 216.6720428466797,"time": 1702536454041},{"x": 785.4308471679688,"y": 216.6720428466797,"time": 1702536454057},{"x": 786.7714233398438,"y": 216.6720428466797,"time": 1702536454070},{"x": 786.7733154296875,"y": 216.6720428466797,"time": 1702536454083}],[{"x": 733.5531616210938,"y": 316.62501525878906,"time": 1702536454456},{"x": 756.4210815429688,"y": 315.2781524658203,"time": 1702536454472},{"x": 775.4960327148438,"y": 315.2565460205078,"time": 1702536454488},{"x": 790.3649291992188,"y": 317.1736297607422,"time": 1702536454506},{"x": 804.3414916992188,"y": 319.8348846435547,"time": 1702536454524},{"x": 815.0912475585938,"y": 323.1543731689453,"time": 1702536454540},{"x": 823.2052612304688,"y": 325.8422393798828,"time": 1702536454556},{"x": 829.9567260742188,"y": 328.5275115966797,"time": 1702536454571},{"x": 835.1862182617188,"y": 329.8536834716797,"time": 1702536454589},{"x": 839.3932495117188,"y": 330.5771026611328,"time": 1702536454606},{"x": 841.41259765625,"y": 330.5771026611328,"time": 1702536454618}],[{"x": 783.1222534179688,"y": 122.69233703613281,"time": 1702536454959},{"x": 807.8834838867188,"y": 125.26026916503906,"time": 1702536454974},{"x": 833.0866088867188,"y": 128.6871337890625,"time": 1702536454989},{"x": 854.1300659179688,"y": 132.88661193847656,"time": 1702536455006},{"x": 869.70361328125,"y": 138.1724853515625,"time": 1702536455021},{"x": 882.982666015625,"y": 144.5460968017578,"time": 1702536455042},{"x": 895.916748046875,"y": 152.63514709472656,"time": 1702536455056},{"x": 906.02685546875,"y": 160.70143127441406,"time": 1702536455071},{"x": 916.085693359375,"y": 170.0878448486328,"time": 1702536455090},{"x": 925.06689453125,"y": 182.9326934814453,"time": 1702536455105},{"x": 932.54638671875,"y": 195.7455291748047,"time": 1702536455121},{"x": 937.921142578125,"y": 209.0699920654297,"time": 1702536455139},{"x": 941.3206787109375,"y": 221.79115295410156,"time": 1702536455159},{"x": 943.363037109375,"y": 235.3358612060547,"time": 1702536455171},{"x": 943.3616943359375,"y": 248.3235626220703,"time": 1702536455187},{"x": 942.05517578125,"y": 261.0668182373047,"time": 1702536455205},{"x": 938.763427734375,"y": 275.0695037841797,"time": 1702536455221},{"x": 933.5555419921875,"y": 287.5211639404297,"time": 1702536455238},{"x": 928.054443359375,"y": 298.5670928955078,"time": 1702536455255},{"x": 921.485107421875,"y": 307.7720489501953,"time": 1702536455271},{"x": 913.521728515625,"y": 316.4197235107422,"time": 1702536455288},{"x": 905.4949951171875,"y": 325.1339569091797,"time": 1702536455305},{"x": 896.376953125,"y": 333.6233673095703,"time": 1702536455321},{"x": 885.5185546875,"y": 342.4713592529297,"time": 1702536455339},{"x": 874.749755859375,"y": 350.5452117919922,"time": 1702536455356},{"x": 863.4857177734375,"y": 359.8206329345703,"time": 1702536455370},{"x": 852.8712768554688,"y": 367.1151580810547,"time": 1702536455391},{"x": 841.2532958984375,"y": 374.6466522216797,"time": 1702536455404},{"x": 829.65380859375,"y": 381.0709991455078,"time": 1702536455421},{"x": 817.5537109375,"y": 387.79103088378906,"time": 1702536455437},{"x": 805.4242553710938,"y": 393.8605499267578,"time": 1702536455454},{"x": 793.5094604492188,"y": 399.15431213378906,"time": 1702536455472},{"x": 782.9738159179688,"y": 403.1088409423828,"time": 1702536455489},{"x": 772.8463745117188,"y": 406.4949493408203,"time": 1702536455504},{"x": 764.2553100585938,"y": 409.1325225830078,"time": 1702536455522},{"x": 756.42041015625,"y": 411.1269073486328,"time": 1702536455540},{"x": 749.0506591796875,"y": 413.7377471923828,"time": 1702536455557},{"x": 742.9489135742188,"y": 416.42872619628906,"time": 1702536455572},{"x": 737.5338745117188,"y": 418.4693145751953,"time": 1702536455588},{"x": 733.5607299804688,"y": 420.4709014892578,"time": 1702536455605},{"x": 730.177734375,"y": 422.4792022705078,"time": 1702536455622},{"x": 728.816650390625,"y": 424.4844512939453,"time": 1702536455638},{"x": 728.80224609375,"y": 427.1183624267578,"time": 1702536455655},{"x": 732.04443359375,"y": 429.1317901611328,"time": 1702536455671},{"x": 739.4037475585938,"y": 431.8090362548828,"time": 1702536455688},{"x": 752.61962890625,"y": 435.11402893066406,"time": 1702536455712},{"x": 767.9056396484375,"y": 437.7860870361328,"time": 1702536455727},{"x": 784.0560302734375,"y": 439.1490020751953,"time": 1702536455738},{"x": 800.2537841796875,"y": 441.17530822753906,"time": 1702536455755},{"x": 820.0858154296875,"y": 443.8155059814453,"time": 1702536455772},{"x": 837.1102905273438,"y": 445.79103088378906,"time": 1702536455787},{"x": 852.6246948242188,"y": 447.1361846923828,"time": 1702536455803},{"x": 865.9520263671875,"y": 449.1322784423828,"time": 1702536455820},{"x": 876.6416015625,"y": 451.1309356689453,"time": 1702536455844},{"x": 886.6123046875,"y": 453.1099395751953,"time": 1702536455855},{"x": 894.085205078125,"y": 454.4803009033203,"time": 1702536455871},{"x": 899.9359130859375,"y": 455.77760314941406,"time": 1702536455888},{"x": 904.62646484375,"y": 458.4120635986328,"time": 1702536455904},{"x": 908.64892578125,"y": 460.4477081298828,"time": 1702536455920},{"x": 908.71240234375,"y": 460.4689483642578,"time": 1702536455930}]
]希望我的愚见能够帮助你哦~，若有不足之处，还望指出，你们有更好的解决方法，欢迎大家在评论区下方留言支持，大家一起相互学习参考呀~
)
![[MAUI]在.NET MAUI中调用拨号界面](http://pic.xiahunao.cn/[MAUI]在.NET MAUI中调用拨号界面)
![[NAND Flash 5.2] SLC、MLC、TLC、QLC、PLC NAND_闪存颗粒类型](http://pic.xiahunao.cn/[NAND Flash 5.2] SLC、MLC、TLC、QLC、PLC NAND_闪存颗粒类型)
---------TCP重传性能优化)
