<!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> <title>无标题页</title> <script type="text/javascript" src="JS/jquery-1.4.1.min.js"></script> <script type="text/javascript"> $(function(){ var xzVal = "3,5,6".split(','); $("#fruits").children().each(function(){ for(var i = 0; i < xzVal.length; i++) { if($(this).val() == xzVal[i]) $(this).attr("selected", "selected"); } }); }); function getXZValue(){ alert($("#fruits").val()); } </script> </head> <body> <select name="fruits" id="fruits" size="10" multiple="multiple"> <option value="1">苹果</option> <option value="2">梨</option> <option value="3">桃子</option> <option value="4">香蕉</option> <option value="5">菠萝</option> <option value="6">桔子</option> </select><input type="button" onclick="getXZValue();" value="获取" /> </body> </html>