控制台输入如下代码，回车

	const video = document.getElementsByTagName("video")[0];//获取bpx-player-control-bottom-center容器,更改其布局方式const div = document.getElementsByClassName("bpx-player-control-bottom-center")[0];div.style.display = "flex";div.style.gap = "10px";// 创建的A按钮const divA = document.createElement("div");divA.textContent = "A点";divA.style.fontSize = "14px";divA.style.cursor = "pointer";divA.style.fontWeight = "600";divA.style.width = "30px";divA.classList.add("bpx-player-ctrl-btn");// 创建的B按钮const divB = document.createElement("div");divB.textContent = "B点";divB.style.fontSize = "14px";divB.style.cursor = "pointer";divB.style.fontWeight = "600";divB.style.width = "30px";divB.classList.add("bpx-player-ctrl-btn");// 创建的清除循环按钮const divClear = document.createElement("div");divClear.textContent = "清除循环";divClear.style.fontSize = "14px";divClear.style.cursor = "pointer";divClear.style.fontWeight = "600";divClear.style.width = "60px";divClear.classList.add("bpx-player-ctrl-btn");//创建标记Aconst markA = document.createElement("div");markA.style.position = "absolute";markA.style.left = "0px"; //此处设置位置markA.style.top = "0px";markA.style.display = "none";markA.textContent = "🔻";//创建标记Aconst markB = document.createElement("div");markB.style.position = "absolute";markB.style.left = "0px"; //此处设置位置markB.style.top = "0px";markB.style.display = "none";markB.textContent = "🔻";let pointA = null;let pointB = null;let loopInterval = null;//添加三个控制按钮window.onload = function () {div.append(divA);div.append(divB);div.append(divClear);};function addMarkA() {const markContainer = document.getElementsByClassName("bpx-player-progress-area")[0];markContainer.append(markA);const width = markContainer.clientWidth; //获取进度的宽度const duration = video.duration; //获取总时长markA.style.left = (width / duration) * pointA - 10 + "px";markA.style.display = "block";}function addMarkB() {const markContainer = document.getElementsByClassName("bpx-player-progress-area")[0];markContainer.append(markB);const width = markContainer.clientWidth; //获取进度的宽度const duration = video.duration; //获取总时长markB.style.left = (width / duration) * pointB - 10 + "px";markB.style.display = "block";}divA.addEventListener("click", () => {pointA = video.currentTime;addMarkA();});divB.addEventListener("click", () => {pointB = video.currentTime;addMarkB();start();});function start() {if (pointA !== null && pointB !== null && pointA < pointB) {clearInterval(loopInterval);loopInterval = setInterval(() => {if (video.currentTime >= pointB) {video.currentTime = pointA;}}, 100);console.log("循环开始", pointA, "to", pointB);} else {console.log("请设置循环点");}}divClear.addEventListener("click", () => {clearInterval(loopInterval);pointA = null;pointB = null;markA.style.display = "none";markB.style.display = "none";});video.addEventListener("ended", () => {clearInterval(loopInterval);});// 在选集中切换视频时，清除循环const observer = new MutationObserver(mutations => {mutations.forEach(mutation => {if (mutation.type === 'attributes' && mutation.attributeName === 'src') {if(video.src===''){console.log('视频源为空');}else{console.log('视频源已更改:', video.src);divClear.click()}}});});// 配置观察选项observer.observe(video, { attributes: true });