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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
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<body>
<p>显示的内容</p>
<p class="wz">显示的内容2</p>
<div class="wz">div显示</div>
<input id="show" onclick="$(this).click($('.wz').show())" type="button" value="显示" />
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