SVG画虚线圆

 <svg xmlns="http://www.w3.org/2000/svg" version="1.1">
        <g stroke="#64a9c4" fill="#b1d1f7" stroke-width="4">
            <circle r="50" cx="80" cy="80" stroke-dasharray="15,10"></circle>
            <animateTransform attributeName="transform" attributeType="XML" type="rotate" from="0" to="360" begin="0s" dur="4s" fill="freeze" />
        </g>
    </svg>

SVG画虚线圆

原文：http://www.cnblogs.com/shenyulin/p/4530668.html