我把鼠标移到超链接上,除了显示本身title的内容外,应该还要显示hello,world!啊,怎么没有hello,world!呢?<!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>
<title>无标题页</title>
<script type="text/javascript">
function initEvent(){
var links = document.getElementById("a");
for(var i=0;i<links.length; i++){
var link = links[i];
link.onmouseover = mouseOver;
}
}
function mouseOver(){
var divMain = document.createElement("div");
divMain.style.position = "absolute";
divMain.style.top = window.event.clientY;
divMain.style.left = window.event.clientX;
divMain.innerText = "hello,world!";
document.body.appendChild("divMain");
}
</script>
</head>
<body onload="initEvent()">
<a href="http://www.tianya.cn" title="最大的华人社区">天涯</a><br /><br />
<a href="http://www.baidu.com" title="竞价排名专用网">百度</a><br /><br />
<a href="http://www.sohu.com" title="搜狐搜狗啥都能搜">搜狐</a><br /><br />
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script type="text/javascript">
function initEvent(){
var links = document.getElementById("a");
for(var i=0;i<links.length; i++){
var link = links[i];
link.onmouseover = mouseOver;
}
}
function mouseOver(){
var divMain = document.createElement("div");
divMain.style.position = "absolute";
divMain.style.top = window.event.clientY;
divMain.style.left = window.event.clientX;
divMain.innerText = "hello,world!";
document.body.appendChild("divMain");
}
</script>
</head>
<body onload="initEvent()">
<a href="http://www.tianya.cn" title="最大的华人社区">天涯</a><br /><br />
<a href="http://www.baidu.com" title="竞价排名专用网">百度</a><br /><br />
<a href="http://www.sohu.com" title="搜狐搜狗啥都能搜">搜狐</a><br /><br />
</body>
</html>
var links = document.getElementById("a");====>var links = document.getElementsByTagName("a");
<script type="text/javascript">
function initEvent() {
var links = document.getElementsByTagName("a");
for (var i = 0; i < links.length; i++) {
var link = links[i];
link.onmouseover = mouseOver;
}
}
function mouseOver() {
var divMain = document.createElement("div");
divMain.style.position = "absolute";
divMain.style.top = window.event.clientY;
divMain.style.left = window.event.clientX;
divMain.innerText = "hello,world!";
document.body.appendChild(divMain);
}
</script>
document.body.appendChild("divMain"); 红色 document.body.appendChild(divMain); //单引号去掉,,,
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>无标题页</title>
<script type="text/javascript">
function initEvent(){
var links = document.getElementsByTagName("a");
for(var i=0;i<links.length; i++){
var link = links[i];
link.onmouseover = mouseOver;
}
}
function mouseOver(){
var divMain = document.createElement("div");
divMain.style.position = "absolute";
divMain.style.top = window.event.clientY;
divMain.style.left = window.event.clientX;
divMain.innerText = "hello,world!";
document.body.appendChild(divMain);
}
</script>
</head>
<body onload="initEvent()">
<a href="http://www.tianya.cn" title="最大的华人社区">天涯</a><br /><br />
<a href="http://www.baidu.com" title="竞价排名专用网">百度</a><br /><br />
<a href="http://www.sohu.com" title="搜狐搜狗啥都能搜">搜狐</a><br /><br />
</body>
</html>