svg 转圈圈

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<!doctype html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>动画效果</title>
    <!--此处填写代码-->
    <style>
        svg {
            cursor:pointer;
        }
    </style>
</head>

<body>
    <svg width="320" height="200" xmlns="http://www.w3.org/2000/svg">
        <text font-family="microsoft yahei" font-size="40" y="60" x="100">love
            <!--此处填写代码-->
            <animateTransform attributeType="XML" attributeName="transform" begin="0s" dur="3s" type="rotate" from="0 150,120"
                to="360 150,120" repeatCount="indefinite" />
            <animateTransform        attributeType="XML" attributeName="transform" begin="0s" dur="3s" type="scale" from="1 1 " to="1.5 1.5"
                repeatCount="indefinite" additive="sum" />
        </text>
    </svg>
    <script>
        //此处填写代码
        window.onload=function() {
            var svg=document.querySelector("svg"),
                state=1;
            svg.addEventListener("click",function() {
                if(state===1) {
                    state=0;
                    this.pauseAnimations();
                }
               else{
                state=1;
                  this.unpauseAnimations();
               }
            })

            
        }
    </script>
</body>

</html>

additive=”sum” 可以控制动画是否为加法