案例:three 关键帧动画 时间递增     状态:可编辑再运行    进入竖版
 运行结果 
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<!DOCTYPE html>
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<html>
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<head>
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  <meta charset="UTF-8">
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  <style>
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    body {
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      margin: 0;
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      overflow: hidden;
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      /* 隐藏body窗口区域滚动条 */
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    }
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  </style>
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  <!--引入three.js三维引擎-->
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  <script src="/js/threejs/threer92.js"></script>
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  <script src="/example/threejs/solarsystem/files/OrbitControls.js"></script>
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</head>
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<body>
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<div>
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    <button onclick="pos()" type="button" style="position: absolute;padding: 10px;">时间递增</button>
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</div>
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  <script>
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    //创建场景
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    var scene = new THREE.Scene();
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    // 立方体网格模型
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    var geometry1 = new THREE.BoxGeometry(100, 10, 10);
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    var material1 = new THREE.MeshLambertMaterial({
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        color: 0x0000ff
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    }); //材质对象Material
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    var mesh1 = new THREE.Mesh(geometry1, material1); //网格模型对象Mesh
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    scene.add(mesh1); //网格模型添加到场景中
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    // 球体网格模型
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    var geometry2 = new THREE.SphereGeometry(15, 40, 40);
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    var material2 = new THREE.MeshLambertMaterial({
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        color: 0xff00ff
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    });
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    var mesh2 = new THREE.Mesh(geometry2, material2); //网格模型对象Mesh
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    scene.add(mesh2);
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/**
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 * 创建两个网格模型并设置一个父对象group
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 */