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aÒ³Ã棺
<%
  sum1 += Float.parseFloat(tmp);
  }
  session.setAttribute("sum",sum1);
  rs.close();
  stmt.close();
  con.close();
   
  }
  catch(ClassNotFoundException e){
  strError = e.toString();
  } 
  catch(SQLException e){
  strError = e.toString();
  } 
 
  %>

bÒ³Ã棺

<tr>
  <td height="37" align="right">×ܺÍ:</td>
  <td width="363"><%
  float sum = Float.parseFloat(session.getAttribute("sum1").toString()); 
  out.print(sum);
  session.removeAttribute("sum1");
   
  %></td>
  </tr>

---

Äã·Å½øÈ¥µÄÊÇsession.setAttribute("sum",sum1); keyÊÇsum
ÄãÈ¡µÄʱºòsession.getAttribute("sum1") keyÊÇsum1¿Ï¶¨È¡²»µ½£¬ÆäËüµÄÓÐûÓÐ´í²»ºÃ˵£¬ÏÈ°ÑÕâÀï¸Äµô°É

session.getAttribute("sum")

---

float sum = Float.parseFloat(session.getAttribute("sum").toString());

---

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