jQuery ?? ???
Loading ???
javascript ?? ???:
<body onload = "function()">
window.onload = function(){}
jquery ?? ??? ??
① $(document).ready(?? ??);
② $().ready(?? ??);
3 $(?? ??); ?? ?? ???
<!DOCTYPE html>
<html>
<head>
<title>php.cn</title>
<meta charset="utf-8" />
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script>
//① $(document).ready(加載事件處理函數(shù));
////$(document) 創(chuàng)建一個jquery對象，內(nèi)部有dom組成部分：document
//$(document)[0]-------獲得-------->document對象
$(document).ready(function(){
console.log(123);
});
//② $().ready(加載事件處理函數(shù))
//$() 創(chuàng)建一個jquery對象，內(nèi)部沒有dom組成部分
$().ready(function(){
console.log(456);
});
//③ $(function加載事件處理函數(shù));
$(function(){
console.log(789);
});
</script>
<style type="text/css">
</style>
</head>
<body>
</body>
</html> jquery ?? ???? ?? ?? ???? ???
?? ??
??? ???? jquery? ?? ??? ??? ? ???, ???? ??? ??? ??? ? ????.
???? ???? ???? ??? onload ??? ??? ?? ???? ????. ?? ? ???? ??? ??? ?????.
jquery? ??? ?? ???? ? ?? ???? ??? ???? ??? ??? ???. ?? ? ??? ???? ? ??? ???? ??? ?? ?? ?? ???? ??? ? ????.
?? ??? ????
??? ?? ???? ?? ???(???, ??, ???)? ????? ??? ? ?? ???? ???? ????.
Jquery ?? ???? ?? ???(???, ??, ???)? ???? ?? DOM ?? ??? ??? ?? ?? ?????. ?? ???? ?? ????? ???? ??? ? ????.
<!DOCTYPE html>
<html>
<head>
<title>php.cn</title>
<meta charset="utf-8" />
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js"></script>
<script>
window.onload = function(){
console.log('abc');
}
$(function(){
console.log('def');
});
</script>
<style type="text/css">
</style>
</head>
<body>
<h2>加載事件區(qū)別</h2>
</body>
</html>
