<%int i=0;%>
<logic:iterate id="myProject" name="assetList"> 
<tr id="<%= i%>"> 
<td class="pagezch"> 
<bean:write name="myProject" property="attachValue" /> 
</td> 
<td class="pagezch"> 
<bean:write name="myProject" property="attachDate" /> 
</td> 
<td class="pagezch"> 
<bean:write name="AsTreatmentDto" property="prepareFeeRate" />% 
</td> 
<td class="pagezch"> 
<bean:write name="myProject" property="attachPrepareFee" /> 
</td> 
<td class="pagezch"> 
   <img id="del"  src="/asset/images/button_delete.gif" style="cursor:hand" border="0" onclick="validate(' <bean:write name="AsTreatmentDto" property="projectID" />',' <bean:write name="myProject" property="attachDate" />');" > 
</td> 
</tr> 
<%i++;%>
</logic:iterate>

------解决方案--------------------
<%int i=0;%>
<logic:iterate id="myProject" name="assetList">  
<tr id="<%= i%>"> 
<td class="pagezch">  
<bean:write name="myProject" property="attachValue" />  
</td>  
<td class="pagezch">  
<bean:write name="myProject" property="attachDate" />  
</td>  
<td class="pagezch">  
<bean:write name="AsTreatmentDto" property="prepareFeeRate" />%  
</td>  
<td class="pagezch">  
<bean:write name="myProject" property="attachPrepareFee" />  
</td>  
<td class="pagezch">  
  <img id="del"  src="/asset/images/button_delete.gif" style="cursor:hand" border="0" onclick="validate(' <bean:write name="AsTreatmentDto" property="projectID" />',' <bean:write name="myProject" property="attachDate" />');"