可填写下拉列表-改进版

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<script language="javascript">    function changeF()    {       document.getElementById('makeupCo').value=       document.getElementById('makeupCoSe').options[document.getElementById('makeupCoSe').selectedIndex].value;//alert(document.getElementById('makeupCo').value);    } function submitForm()    {        alert("makeupCo="+document.getElementById('makeupCo').value);alert("makeupCoSe="+document.getElementById('makeupCoSe').value);    }</script><span style="position:absolute;border:1pt solid #c1c1c1;overflow:hidden;width:188px;height:19px;clip:rect(-1px 190px 190px 170px);"><select name="makeupCoSe" id="makeupCoSe" style="width:190px;height:20px;margin:-2px;" onchange="changeF();"><option id="99999" VALUE="" ></option><option id='1' value='java'>java</option><option id='2' value='c++'>c++</option><option id='3' value='python'>python</option></select></span><span style="border-top:1pt solid #c1c1c1;border-left:1pt solid #c1c1c1;border-bottom:1pt solid #c1c1c1;width:170px;height:19px;"><input type="text" name="makeupCo" id="makeupCo" value="请选择或输入" style="width:170px;height:15px;border:0pt;"></span><br><input type="button" name="ss" value="submit" /> 这个下拉列表是采用<span>结合CSS覆盖的方式，后台获取的时候要获取text的值（makeupCo）。