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                        /jQuery基礎(chǔ)(五)一Ajax應(yīng)用與常用插件

為什么不管輸入的數(shù)字是多少，判斷出來的都是等于0？？？

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
??? <head>
??????? <title>使用post()方法以POST方式從服務(wù)器發(fā)送和獲取數(shù)據(jù)</title>
??????? <script src="https://libs.baidu.com/jquery/1.9.0/jquery.js" type="text/javascript"></script>
??????? <link href="style.css" rel="stylesheet" type="text/css" />
??? </head>
?? ?
??? <body>
??????? <div id="divtest">
??????????? <div class="title">
??????????????? <span class="fl">檢測數(shù)字是否大于0</span>
??????????????? <span class="fr"><input id="btnCheck" type="button" value="檢測" /></span>
??????????? </div>
??????????? <ul>
?????????????? <li>請求輸入一個(gè)數(shù)字 <input id="txtNumber" type="text" size="12" /></li>
??????????? </ul>
??????? </div>
?????? ?
??????? <script type="text/javascript">
??????????? $(function () {
??????????????? $("#btnCheck").bind("click", function () {
??????????????????? $.post("http://idcbgp.cn/data/check_f.php",
??????????????????? {num:$("txtNumber").val()},
??????????????????? function (data) {
??????????????????????? $("ul").append("<li>你輸入的<b>? "
??????????????????????? + $("#txtNumber").val() + " </b>是<b> "
??????????????????????? + data + " </b></li>");
??????????????????? });
??????????????? })
??????????? });
??????? </script>
??? </body>
</html>