DOM對(duì)象和jQuery對(duì)象轉(zhuǎn)化
<html>
<head>
<script?type="text/javascript">
/*function?getInnerHTML()
??{
??alert(document.getElementById("tr1").innerHTML);
??}*/
</script>
<script?type="text/javascript"?src="jquery-1.11.1.min.js"></script>
<script?type="text/javascript">
????var?$sc?=?$("#tr1");
????var?cr?=?$sc.get(0);
????alert(cr);
</script>
</head>
<body>
<table?border="1">
????<tr?id="tr1">
????????<th>Firstname</th>
????????<th>Lastname</th>
????</tr>
????<tr?id="tr2">
????????<td>Peter</td>
????????<td>Griffin</td>
????</tr>
</table>
<input?type="button"?onclick="getInnerHTML()"?value="Alert?innerHTML?of?table?row"?/>
</body>
</html>純小白，請(qǐng)問(wèn)alert（cr）中的cr指的是什么，為什么網(wǎng)頁(yè)上彈出的對(duì)話框顯示Undifined
2016-11-20
將js代碼放到body最后，現(xiàn)在這樣獲取不到html標(biāo)簽
2016-10-25
var btn1=$“btn”.get(0)；