JavaScript 使用表格绘制颜色填充矩形

<html>
 <head>
  <title> Javascript画矩形 </title>
 <script type="text/javascript">
  //定义函数，传入设置参数，返回一个有背景颜色的表格
  function drawFilledRect(x,y,w,h,color)
  {
   document.write("<table border='0' cellspacing=0 cellpadding=0><tr><td style='position: absolute; left: "+(x)+"; top: "+(y)+";background-color: "+color+"' width="+(w)+" height="+(h)+"></td></tr></table>")
  }
 </script>
 </head>
 <body >
 <script type="text/javascript">
  //调用两次画矩形的函数
  drawFilledRect(20,80,100,100,"red");
  drawFilledRect(20,180,100,100,"lime");
 </script>
 </body>
</html>