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How to use JavaScript+CSS+DIV to change the color of the table

一个新手Original: 2017-09-22 10:36:231688browse

Set up a table. When the mouse moves to a certain row, the color changes. When the mouse leaves, the color changes to the original color. Each line requires two mouse events:

1. Mouse override: onMouseOver

2. Mouse out: onMouseOut

At the same time, these two events need to call the event function:

1. To set the color of the row:

resetColor(row)

2. Implement the change of row color:

changeColor(row)

Implementation code:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN">
<html>
  <head>
    <title>变色表格示例</title>
	<script type="text/javascript">
	function changeColor(row){
	 document.getElementById(row).style.backgroundColor=&#39;#9999FF&#39;;
	}
	function resetColor(row){
	document.getElementById(row).style.backgroundColor=&#39;&#39;;
	}
	</script>
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="this is my page">
    <meta http-equiv="content-type" content="text/html; charset=UTF-8">
    
    <!--<link rel="stylesheet" type="text/css" href="./styles.css">-->

  </head>
  
  <body>
  <table width="200" border="1" cellspacing="1" cellpadding="1" align="center">
  <tr><th>学校</th><th>专业</th><th>人数</th></tr>
  <tr align="center" id="row1" onMouseOver="changeColor(&#39;row1&#39;)"
   onMouseOut="resetColor(&#39;row1&#39;)">
   <th>北大</th><th>法律</th><th>2000</th>
   </tr>
   <tr align="center" id="row2" onMouseOver="changeColor(&#39;row2&#39;)"
    onMouseOut="resetColor(&#39;row2&#39;)">
    <th>清华</th><th>计算机</th><th>5000</th>
   </tr>
   <tr align="center" id="row3" onMouseOver="changeColor(&#39;row3&#39;)"
    onMouseOut="resetColor(&#39;row3&#39;)">
    <th>人大</th><th>经济</th><th>6000</th>
    </tr>
  </table>
  </body>
</html>

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