点击改行table中的tr则变为红色其他变为白色

来源：互联网发布：非凡软件站安全吗编辑：程序博客网时间：2024/05/17 08:55

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>演示文档</title>
<script type="text/javascript">
function initEvent(){
  var tableMain = document.getElementById("tableMain");
  var trs = tableMain.getElementsByTagName("tr");
  for(var i = 0;i<trs.length;i++){
   var tr=trs[i];
   tr.onclick = trOnClick;
   tr.style.cursor = "pointer";
  }

}
function trOnClick(){
  var tableMain = document.getElementById("tableMain");
  var trs = tableMain.getElementsByTagName("tr");
  for(var i = 0;i<trs.length;i++){
   var tr=trs[i];
   if(tr == this){
    tr.style.background="red";
   }else{
    tr.style.background="white";
   }
  }
}
</script>
</head>
<body onload="initEvent()">
<table id="tableMain">
<tr><td>百度</td><td>baidu</td></tr>
<tr><td>谷歌</td><td>google</td></tr>
<tr><td>搜搜</td><td>soso</td></tr>
<tr><td>有道</td><td>youdao</td></tr>
</table>

</body>
</html>