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console 命令行工具 X clear

                    
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console
<table width="300" height="100">
 <tr>
  <td onmouseover="bgChange('#f09f28')" 
      onmouseout="bgChange('transparent')"
      bgcolor="#f09f28">
  </td>
  <td onmouseover="bgChange('#094e85')" 
      onmouseout="bgChange('transparent')"
      bgcolor="#094e85">
  </td>
  <td onmouseover="bgChange('#57a65a')" 
      onmouseout="bgChange('transparent')"
      bgcolor="#57a65a">
  </td>
</tr>
</table>
<script type="text/javascript">
	function bgChange(bg){
		document.body.style.background = bg;
	}
</script>