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console 命令行工具 X clear

                    
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console
<svg width="500" height="500" class="q">
 <circle cx="100" cy="100" r="50" 
 fill="none" stroke="grey" stoke-width="3"/>
 <circle cx="100" cy="100" r="50" fill="none" 
 transform-origin="50% 50%" class="y2" stoke-width="3"/>
</svg>
.q{background-color: lightblue}
@keyframes zhuan{
    0%{
        transform:rotate(0deg);
    }
    100%{
        transform:rotate(360deg);
    }
}
.y2{transform-box:fill-box;
    stroke: pink;
    stroke-dasharray: 78 236;
    animation: zhuan 1s infinite linear;
}