SOURCE

let fontData, textAnimationData;
    let type = "flower";//transition 、effect 、text 、flower、animation
    let canvas = document.getElementById('canvas');
    let editor = new Editor(canvas);
    let wordArt, wordArt1;
    let fontNum = 0;
    let animation1, animation2, animation3, textType, stickerNode, textNode, sticker_url, text_url;
   
    let track_video = editor.track({ type: 'video', zIndex: 0 });
    let track_video1  = editor.track({ type: 'video', zIndex: 1 });
    
    let videoNode = editor.video('https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/example2.mp4', {
      userData: {
        source: ''
      }
    });
    videoNode.timelineStart(0);
    videoNode.timelineStop(4);
    videoNode.name = 'video1';
    track_video.addNode({ node: videoNode });

    let videoNode1 = editor.video('https://tosv.byted.org/obj/eden-internal/uhyuhybd/video-editor-resource/assets/example2.mp4', {
      userData: {
        source: ''
      },
      width:200,
      height:300
    });
    videoNode1.timelineStart(0);
    videoNode1.timelineStop(4);
    videoNode1.name = 'video1';
    track_video.addNode({ node: videoNode1 });
   
    // track_effect.addEffect({ effect,secondaryNode:[secondaryNode] });
    
    initEvent();
    initEditor();
    function initEvent() {
      let removeNodeDom = document.getElementById('removeNode');
      removeNodeDom.onclick = () => {
        track_video.removeNode({node:videoNode})
      }
      let addNodeDom = document.getElementById('addNode');
      addNodeDom.onclick = () => {
        track_video1.addNode({node:videoNode})
      }
      
    }
    function initEditor() {
      let graphCanvas = document.getElementById('graph');
      Editor.utils.visualiseVideoContextGraph(editor, graphCanvas,true);
      editor.on('timeupdate', () => {
        Editor.utils.visualiseVideoContextGraph(editor, graphCanvas);
      })
      InitVisualisations(editor, 'timeline-canvas', 'currentTime');
      playButton.onclick = () => {
        editor.play();
      }
      pauseButton.onclick = editor.pause.bind(editor);
      let interactiveBox = editor.initInteractiveBox(wrapper, {
        rotatable: true,
      });
    }

 <div class="wrapper" id="wrapper">
    <canvas width="640" height="360" id="canvas"></canvas>
  </div>
  <button id="playButton">play</button>
  <button id="pauseButton">pause</button></br>
  <button id="removeNode">轨道一移除节点</button>
  <button id="addNode">轨道二添加节点</button>
  <p id="currentTime">
  </p>
  <p>
    <canvas id="timeline-canvas" width="640" height="20"></canvas>
  </p>
  <canvas width="640" height="360" id="graph"></canvas>

html {
    font-family: monospace;
    color: #333;
    /* background-color: black; */
  }
  #current {
    font-size: 12px;
  }
  #canvas {
    width: 640px;
    height: 360px;
  }
  #canvas2 {
    width: 640px;
    height: 360px;
    position: absolute;
    left: 0px;
    top: 0px;
    z-index: 10;
  }
  #container {
    position: relative;
  }

  button {
    line-height: 1.499;
      position: relative;
      display: inline-block;
      font-weight: 400;
      white-space: nowrap;
      text-align: center;
      background-image: none;
      border: 1px solid transparent;
      cursor: pointer;
      user-select: none;
      height: 32px;
      padding: 0 15px;
      font-size: 14px;
      border-radius: 4px;
      color: rgba(0,0,0,0.65);
      background-color: #fff;
      border-color: #d9d9d9;
      outline: 0;
      transition: all .3s cubic-bezier(.645, .045, .355, 1);
  }

  button:hover {
    color: #40a9ff;
    background-color: #fff;
    border-color: #40a9ff;
  }

  button:active {
    color: #096dd9;
    background-color: #fff;
    border-color: #096dd9;
  }

  input[type="text"] {
    -webkit-appearance: none;
    background-color: #fff;
    background-image: none;
    border-radius: 4px;
    border: 1px solid #dcdfe6;
    box-sizing: border-box;
    color: #606266;
    display: inline-block;
    font-size: inherit;
    height: 32px;
    line-height: 32px;
    outline: none;
    padding: 0 8px;
    transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
    width: 50px;
  }

  .wrapper {
    width: 640px;
    height: 360px;
    position: relative;
  }

@font-face {
  font-family: "hardFont";
  src: url('./../../assets/hardFont.ttf');
}
#bg-video{
    width:640px;
    height:400px;
}
#changeSrc{
    width:80%;
    height:40px;
    line-height: 40px;
}