<svg width="200" height="250" version="1.1" xmlns="http://www.w3.org/2000/svg">
<!-- 直线 -->
<line x1="10" x2="90" y1="10" y2="45" stroke="orange" fill="transparent" stroke-width="5"/>
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<polyline points="10,25 20,25 30,55 50,45 60, 65 70,75 80,65 90,80"
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