console 命令行工具 X clear
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    <h1>交作业01 张三</h1>
    <p>Lorem ipsum dolor sit, amet consectetur adipisicing elit. Tenetur, nulla iure cum maxime, mollitia aliquid rem eaque similique quia suscipit corrupti laudantium esse enim repellat velit beatae dolorum exercitationem illo.</p>
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