html
<!DOCTYPE html>
<html>
<head>
<title>SVG SMIL Animate with Path</title>
</head>
<body>
<!--动画属性-->
<h1>PATH </h1>
<svg width="300px" height="100px">
<path d="M 100 100 L 300 100 L 100 300 z"
fill="red" stroke="blue" stroke-width="20" rx="30" ry="30"/>
</svg>
<!--动画属性-->
<h1>动画属性</h1>
<svg width="300px" height="100px">
<rect x="0" y="0" width="300" height="100" stroke="black" stroke-width="1"/>
<circle cx="0" cy="50" r="15" fill="blue" stroke="black" stroke-width="1">
<animate attributeName="cx" from="0" to="100" dur="5s" repeatCount="indefinite"/>
</circle>
</svg>
<!--旋转动画-->
<h1>旋转动画</h1>
<svg width="300px" height="100px">
<rect x="0" y="0" width="300" height="100" stroke="black" stroke-width="1" rx="30" ry="30"/>
<rect x="0" y="50" width="15" height="34" fill="blue" stroke="black" stroke-width="1" transform="rotation">
<!-- Rotate from 0 to 360 degrees, and move from 60 to 100 in the x direction. -->
<!-- Keep doing this until the drawing no longer exists. -->
<animateTransform
attributeName="transform"
begin="0s"
dur="20s"
type="rotate"
from="0 60 60"
to="360 100 60"
repeatCount="indefinite"
/>
</rect>
</svg>
<h1>路径动画</h1>
<!--线性运动-->
<h2>1.线性运动</h2>
<svg xmlns="http://www.w3.org/2000/svg" width="300px" height="100px">
<rect x="0" y="0" width="300" height="100" stroke="black" stroke-width="1"/>
<circle cx="0" cy="50" r="15" fill="blue" stroke="black" stroke-width="1">
<animateMotion path="M 0 0 H 300 Z" dur="3s" repeatCount="indefinite"/>
</circle>
</svg>
<!--曲线运动-->
<h2>2.曲线运动</h2>
<svg width="300px" height="100px">
<rect x="0" y="0" width="300" height="100" stroke="black" stroke-width="1"/>
<rect x="0" y="0" width="20" height="20" fill="blue" stroke="black" stroke-width="1">
<animateMotion path="M 250,80 H 50 Q 30,80 30,50 Q 30,20 50,20 H 250 Q 280,20,280,50 Q 280,80,250,80Z"
dur="3s" repeatCount="indefinite" rotate="auto"/>
</rect>
</svg>
<div>
<br/>
<a href="https://developer.mozilla.org/zh-CN/docs/Web/SVG/SVG_animation_with_SMIL">参考MDN开发文档SVG_animation_with_SMIL</a>
</div>
</body>
</html>