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jQuery()函数的4种调用方法
- $(“CSS选择器”,context)
- $(Element or Document or Window);//将对象封装为jQuery()对象
- $(HTML字符串,{css:{},click:Function ,src:url})；
- $(Function);
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>this is test</title>
<script src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
</head>
<body>
<div>1</div>
<div>2</div>
<div>3</div>
</body>
</html>
<script>
var divCol_1=$("div",document);
var divCol_2 = $("document");
var $div = $("<div></div>",{css:{width:"100px",height:"100px",backgroundColor:"yellow"}});
document.body.appendChild($div[0]);
$(function(){console.log("one");});
$(function(){console.log("two")});
</script>