jQuery-text()与val()方法区别
<HTML><HEAD>
<script type="text/javascript" src="jquery.js"></script>
<SCRIPT type="text/javascript">$(document).ready(function() {
$("#ylok").click(function(){
alert($("p").text()); //将所有的p内容，打印出来
alert($("div").text());
alert($("span").text());
alert($("#yltxt").val());//多了#
alert($("#yltxt")[0].value);//多了#
alert($("#yltxt").attr("value")+"三");
alert($("input[@name='yltext']").val()+"四");
});
});
</SCRIPT>
</HEAD>
<BODY>
<div class="components-list">
<input type="checkbox" name="checkbox_name[]" id="checkbox_name_1" />1<br />
<input type="checkbox" name="checkbox_name[]" id="checkbox_name_2" />2<br />
<input type="checkbox" name="checkbox_name[]" id="checkbox_name_3" />3<br />
<input type="checkbox" name="checkbox_name[]" id="checkbox_name_4" />4<br />
</div>
<p>Paraparagraph</p>
<div>1223</div>
<span>123</span>
<p>
<select id="test">
<option value="a">A</option>
<option value="b">B</option>
<option value="c" selected>C</option>
</select>
<input type="text" name="yltext" id="yltxt" value="yanleigis1">
<input type="text" name="yltext" id="yltxt" value="yanleigis2">
</p>
<p>
<input type="button" id="ylok" value="获得属性">
</p>
</BODY>
</html>
