<span style=" text-decoration:line-throughcolor:red">199元</span><br />
<span style="font-weight:boldcolor:green">现价:99元</span>
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99<small>.23</small>
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<li style="text-decoration:line-through">价格</li>或者
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#lankii{text-decoration:line-through}//用id引用lankii,这个css效果优先于class
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<span class=“lankii”>价格</span>
<span id=“lankii”>价格</span>