JS 控制select选中项，代码如下：
<html> <script type="text/javascript"> var selectedValue = '<%= request.getAttribute("line")%>'; function changeSelected(){ jsSelectItemByValue(document.getElementById("mySelect"),selectedValue); } function jsSelectItemByValue(objSelect,objItemText) { for(var i=0;i<objSelect.options.length;i++) { if(objSelect.options[i].value == objItemText) { objSelect.options[i].selected = true; break; } } } </script> <body onload="changeSelected()"> <select id="mySelect" name="mySelect"> <option value="0">0</option> <option value="1">1</option> <option value="2">2</option> <option value="3">3</option> </select> </body> </html>
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