<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
#test {
height: 100px;
font-size: 50px;
color: yellow;
line-height: 100px;
background-color: red;
text-align: center;
}
</style>
<script src="http://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js"></script>
<script>
$( function(){
var oDiv = $('<div id="test">点我</div>');
$(document.body).append(oDiv);
$("#test").on('click', function(){
alert('这是事件前添加的DOM,可以正常触发点击事件');
});
} );
</script>
</head>
<body>
<div id="wrap"></div>
</body>
</html>
<!-- 一、正常的DOM: -->
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
#test {
height: 100px;
font-size: 50px;
color: yellow;
line-height: 100px;
background-color: red;
text-align: center;
}
</style>
<script src="http://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js"></script>
<script>
$( function(){
$("#test").on('click', function(){
alert('这是事件后添加的DOM,无法正常触发点击事件');
});
var oDiv = $('<div id="test">点我</div>');
$(document.body).append(oDiv);
} );
</script>
</head>
<body>
<div id="wrap"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
#test {
height: 100px;
font-size: 50px;
color: yellow;
line-height: 100px;
background-color: red;
text-align: center;
}
</style>
<script src="http://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js"></script>
<script>
$( function(){
var oWrap = $('<div id="wrap"></div>');
$(document.body).append(oWrap);
$("#wrap").on('click', $('#test'), function(){
alert('委托对象在事件前添加,可以正常触发点击事件');
});
var oDiv = $('<div id="test">点我</div>');
$("#wrap").append(oDiv);
} );
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<style type="text/css">
#test {
height: 100px;
font-size: 50px;
color: yellow;
line-height: 100px;
background-color: red;
text-align: center;
}
</style>
<script src="http://lib.sinaapp.com/js/jquery/2.0.2/jquery-2.0.2.min.js"></script>
<script>
$( function(){
$("#wrap").on('click', $('#test'), function(){
alert('委托对象在事件后添加,无法正常触发点击事件');
});
var oWrap = $('<div id="wrap"></div>');
$(document.body).append(oWrap);
var oDiv = $('<div id="test">点我</div>');
$("#wrap").append(oDiv);
} );
</script>
</head>
<body>
</body>
</html>
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