我想实现一个功能:当页面获得焦点时,执行一个操作,当页面失去焦点时,执行另一个操作。<!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=gb2312" />
<title>无标题文档</title>
</head><body>
<center><br><br><br><br>
<div id="aaa"></div>
</center>
</body>
<script>window.onload = function(){
window.focus();
window.onblur = function(){//失去焦点
document.getElementById('aaa').innerHTML +=2;
}
window.onfocus = function(){
document.getElementById('aaa').innerHTML +=1;
}
}
</script>
</html>但是无论是失去焦点还是获得焦点时,onblur与onfocus都执行了,请问高手怎么解决
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head><body>
<center><br><br><br><br>
<div id="aaa"></div>
</center>
</body>
<script>window.onload = function(){
window.focus();
window.onblur = function(){//失去焦点
document.getElementById('aaa').innerHTML +=2;
}
window.onfocus = function(){
document.getElementById('aaa').innerHTML +=1;
}
}
</script>
</html>但是无论是失去焦点还是获得焦点时,onblur与onfocus都执行了,请问高手怎么解决
//window.focus();注释了这一句!
window.onblur = function(){//失去焦点
document.getElementById('aaa').innerHTML +=2;
}
window.onfocus = function(){
document.getElementById('aaa').innerHTML +=1;
}
}
如果你只是鼠标点击页面外,再点击进来的话你可以看看这个步骤,是一步一步执行的。