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console 命令行工具 X clear 

                    

                        
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console

            
<svg width="200px" height="300px" viewBox="0 0 220 220">
    <path id="rect" d="M55,40 L55,90 H100 V40 Z" stroke="black" stroke-width="10" fill-opacity="0"/>
    <path  id="yuan" d="M24,40 A25,25 0 1 1 60 22 " stroke="black"
     stroke-width="10" fill="white"/>
     <path id="xian" d="M55,40 L31,16 " stroke="black" stroke-width="10px"/>
     
     <path d="M77.54,0 77.54,100 " stroke="black" stroke-width="10px"  style="transform-origin:50% 50%/>
</svg>

            
#yuan{
    stroke-linecap: round;
    
}
#rect{
    
    stroke-linejoin: round;
    stroke-linecap: round;

}
#xian{
     stroke-linecap: round;
}