求助：关于点击页面上的按钮或选项，能在固定的文本域内显示出点击的按钮和选项的名称

解决方案 »

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<%@ page contentType="text/html; charset=gb2312" %>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<html>
<head>
<link href="../../inc/sysplatform.css" rel="stylesheet" type="text/css">
<title>正则表达式校验工具</title>
</head>
<Script Language="Javascript" Src="/Inc/Main.js"></Script>
<body >
      <TABLE cellSpacing=1 width=100% align=center border=0>
        <TBODY>
          <TR>
            <TD><h1 style="font-size:16px"><span class="blue">正则表达式校验工具</span></h1></TD>
          </TR>
        </TBODY>
      </TABLE>
      <table width="790" border="0" cellpadding="0" cellspacing="0">
        
        <tr valign="middle" bgcolor="#999999">
          <td width="20" height="20"> </td>
          <td colspan="5" valign="middle"><input name="newq23" type="button" class="button1"  id="newq24" onClick="" value="确定">
            <input name="newq32" type="reset" class="button1"  id="newq3" onClick="" value="取消">
            <input name="newq42" type="button" class="button1"  id="newq43" onClick="" value="校验">
                    </td>
          <td width="188" colspan="8" align="right">            <option>
          </option>          </td>
        </tr>
      </table>
      <table width="790" border="0" cellpadding="0" cellspacing="0">
        
        <tr valign="middle">
          <td height="15" colspan="12">   表达式：</td>
          <td width="20"></td>
        </tr>
      </table>
      <table width="790" bgcolor="#F5F5F5" cellpadding=4 cellspacing=0>
        <tr>
          <td><textarea name="sdf3" id="sdf3" class="textarea5" style="width:615;height:120"></textarea></td>
        </tr>
      </table>
    </td>
  </tr>
</table>
<table width="790" border="0">
  <tr>
    <td width="164"><br><br><table width="161" border="0" cellspacing="0" cellpadding="0">
      <tr>
        <td height="30" align="center"><input name="newq22" type="button" class="button1"  id="newq2" onClick="sdf3.innerText = sdf3.innerText+'+'" value=" + "></td>
        <td height="30"><input name="newq222" type="button" class="button1"  id="newq22" onClick="sdf3.innerText = sdf3.innerText+'-'" value=" - "></td>
      </tr>
      <tr>
        <td height="30" align="center"><input name="newq223" type="button" class="button1"  id="newq222" onClick="sdf3.innerText = sdf3.innerText+'*'" value=" * "></td>
        <td height="30"><input name="newq224" type="button" class="button1"  id="newq223" onClick="sdf3.innerText = sdf3.innerText+'/'" value=" / "></td>
      </tr>
      <tr>
        <td height="30" align="center"><input name="newq225" type="button" class="button1"  id="newq224" onClick="sdf3.innerText = sdf3.innerText+'('" value=" ( "></td>
        <td height="30"><input name="newq226" type="button" class="button1"  id="newq225" onClick="sdf3.innerText = sdf3.innerText+')'" value=" ) "></td>
      </tr>
    </table></td>
    <td width="256"><p>函数：</p>
    <p>
      <select name="status" size="6" multiple class="select1" ondblclick =" sdf3.innerText = sdf3.innerText+this.options[this.selectedIndex].innerText">        <option value='1' >abs(x)</option>
        <option value='2'>acos(x)</option>
        <option value='3'>asin(s)</option>
      </select>
</p></td>
    <td width="356"><p>列名：</p>
    <p>
      <select name="select" size="6" multiple class="select1" ondblclick =" sdf3.innerText = sdf3.innerText+this.options[this.selectedIndex].innerText">
        <option value='1'>dsads</option>
        <option value='2'>urtyu</option>
        <option value='3'>rwdgfd</option>
      </select>
    </p></td>
  </tr>
</table>

</body>
</html>
hbhbhbhbhb1021(天外水火(我要多努力)) <input name="newq22" type="button" class="button1"  id="newq2"  value=" + " onclick="document.getElementById('sdf3').value=document.getElementById('sdf3').value+this.value">正解