有一个表格，有一行表头和8行数据，每一行有5列。实现鼠标滑到数据行上改变当前行颜色，移除是变回来。
很好玩的...我们学习一下？。。。。
<title>无标题文档</title>
<script type="text/javascript">
/*有一个表格，有一行表头和8行数据，每一行有5列。实现鼠标滑到数据行上改变当前行颜色，移除是变回来。*/
function changeColor(dom){
dom.style.backgroundColor = "green";
}
function backColor(dom){
dom.style.backgroundColor = "#fff";
}
</script>
<style type="text/css">
</style>
</head>
<body>
<table border="1px solid #000" width = "800px" height = "600px" background = "gray">
<tr class = "d" width = "600px" height = "80px" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<th colspan="5" >html表格练习</th>
</tr>
<!------------------表头------------------------->
<tr width = "600px" height = "80px" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<th width = "150px">学号</th>
<th width = "120px">姓名</th>
<th width = "100px">年龄</th>
<th width = "50px">性别</th>
<th width = "180px">电话</th>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>001</td>
<td>张三</td>
<td>25</td>
<td rowspan = "3">男</td>
<td align = "right">1526965899</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>002</td>
<td>李斯</td>
<td>20</td>
<td align = "right">1556965899</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>003</td>
<td>浊度</td>
<td>25</td>
<td align = "right">1552658985</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>004</td>
<td>李树</td>
<td>25</td>
<td>女</td>
<td align = "right">13665965899</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>005</td>
<td>赵三</td>
<td>65</td>
<td>男</td>
<td align = "right">1526965899</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>006</td>
<td>张三</td>
<td>30</td>
<td>女</td>
<td align = "right">1526965899</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>007</td>
<td>张启</td>
<td>35</td>
<td>男</td>
<td align = "right">16395847965</td>
</tr>
<tr class = "d" onmouseover = "changeColor(this)" onmouseout = "backColor(this)">
<td>008</td>
<td>望值</td>
<td>28</td>
<td>女</td>
<td align = "right">1526638599</td>
</tr>
</table>
</body>
</html>