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<title>实现页内跳转定位到某个ID</title>
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<ul>
<li><a href="javascript:void(0)"goTotop('xwbg')">跳转测试一</a></li>
<li><a href="javascript:void(0)"goTotop('xcshow')"><b>测试二</a></li>
<li><a href="javascript:void(0)"goTotop('wdy')">跳转测试三</a></li>
<li><a href="javascript:void(0)"goTotop('mv')"><跳转测试四</a></li>
<li><a href="javascript:void(0)"goTotop('dsy')">跳转测试五</a></li>
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<div><h3>跳转测试一</h3></div>
<div ><h3>跳转测试二</h3></div>
<div><h3>跳转测试三</h3></div>
<div><h3>跳转测试四</h3></div>
<div><h3>跳转测试五</h3></div>
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<div>ddd</div>
<a href="javascript:void(0)"goTotop('xcshow')">跳转测试一</a>
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