下拉列表 选中

<select name="sysLogTran.preDep" id="sysLogTran.preDep" style="width:100px">
<option></option>
<option value="大气" <s:if test="sysLogTran.preDep=='大气'">selected="selected"</s:if>>大气</option>
<option value="水" <s:if test="sysLogTran.preDep=='水'">selected="selected"</s:if>>水</option>
<option value="生态" <s:if test="sysLogTran.preDep=='生态'">selected="selected"</s:if>>生态</option>
<option value="海洋" <s:if test="sysLogTran.preDep=='海洋'">selected="selected"</s:if>>海洋</option>
<option value="物理" <s:if test="sysLogTran.preDep=='物理'">selected="selected"</s:if>>物理</option>
<option value="分析" <s:if test="sysLogTran.preDep=='分析'">selected="selected"</s:if>>分析</option>
<option value="综合" <s:if test="sysLogTran.preDep=='综合'">selected="selected"</s:if>>综合</option>
</select>