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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>刪除select中重復(fù)項(xiàng)</title> <style type="text/css"> body{ text-align:center;} div{ width:400px; background:#f1f5fa; margin:auto; border:solid 1px #BFC9DB; padding:10px;} h4{ } a{text-align:right; display:block; font-size:12px;} </style> <script type="text/<a href=/itjie/Javajishu/ target=_blank class=infotextkey>Java</a>script"> /*定義全局函數(shù)$*/ function $(id){ return document.getElementById(id); } /*初始化select*/ function InitialSelectOption(id){ var oSel=$(id); var aOptions=["Wang Hongjian","Wang Hongjian","Nichoal Smith","Nichoal Smith","David Gates","David Gates","David Gates","Wang Hongjian","Wang Hongjian","Nichoal Smith","Nichoal Smith","David Gates","David Gates","David Gates"]; var i=0; oSel.options.length=0; while(i </head> <body>  <h4>刪除select重復(fù)項(xiàng)演示</h4> http://www.jb51.<a href=/itjie/NETjishu/ target=_blank class=infotextkey>NET</a>/ <hr /> <select id="sel" multiple="multiple" size="1"><option>待初始化…</select> <hr /> <button id="btnInital">初始化</button> <button id="btnDistinct">刪除重復(fù)項(xiàng)</button>  </body> </html>

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效果

來(lái)源:51obj

JavaScript技術(shù)：js刪除select中重復(fù)項(xiàng)的實(shí)現(xiàn)代碼，轉(zhuǎn)載需保留來(lái)源！

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js刪除select中重復(fù)項(xiàng)的實(shí)現(xiàn)代碼

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