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<html> <head> <script language="javascript">var infoMap = new Object() ;function number(){ var obj = document.getElementById("mySelect"); //obj.options[obj.selectedIndex] = new Option("我的吃吃","4"); //在当前选中的那个的值中改变 //obj.options.style.cssText =("background:red"); obj.options.add(new Option("我的吃吃","4"));//再添加一个option //alert(obj.length); obj.options[obj.length-1].style.cssText =("background:#66FF33"); /* for (var i = 0; i < obj.length; i++) { obj.options.add(new Option(obj[i], obj[i])); } */ //alert(obj.selectedIndex);//显示序号,option自己设置的 /* var name = obj.options[obj.selectedIndex].text; infoMap[name+'-1'] = { name : name, age : '1' }; if( infoMap[name+'-1'] ) { var oldname = infoMap[name+'-1'].name; infoMap[name+'-1'].name = oldname+','+name; } alert(infoMap[name+'-1'].age); */ //obj.options[obj.selectedIndex].text = "我的吃吃";更改值 //obj.remove(obj.selectedIndex);//删除功能 } </script> </head> <body> <select id="mySelect" multiple> <option title='hello' selected>我的包包</option> <option style="background:red" value="#333333">我的本本</option> <option>我的油油</option> <option>我的担子</option> </select></p><p style="color:#fff;background:#780e1a;">Test for set style.</p><p><button >set style(op only)</button></p><p><button >set style(ff & ie)</button></p><p><button >set style(ff & op)</button></p><p><button >set style(ie only)</button></p><p><input type="button" name="button" value="查看结果" > </body> </html>
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