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

壓棧后為什么要寫 $name.val('') ？

<!DOCTYPE?html>
<html>
????<head>
????????<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
????????<script?src="http://libs.baidu.com/jquery/1.9.0/jquery.js"?type="text/javascript"></script>
????????<title>挑戰(zhàn)題</title>
????</head>
????<body>
????????<form>
????????????<input?type="text"?name="name"?value="請輸入姓名"?id="stuName"><br>
????????????<input?type="text"?name="score"?value="請輸入成績"?id="stuScore"><br>
????????????<input?type="button"?value="保存"?id="b-1">
????????????<input?type="button"?value="顯示"?id="b-2">
????????</form>
????????<ul></ul>
????????<script>
????????var?$name=$("#stuName");
????????var?$score=$("#stuScore");
????????var?jsonStu=[];
????????$("#b-1").click(function(){
?????????????jsonStu.push({
????????????????????name?:?$name.val(),?
????????????????????score:?$score.val()?
????????????????});
????????????????$name.val('');//這里是什么意思啊？為什么要寫？刪了可以么？
????????????????$score.val('');
????????});
????????$("#b-2").click(function(){
????????????$.each(jsonStu,function?(i)?{
????????????????????$('ul').append('<li><b>'+?jsonStu[i].name?+?'</b>的分數(shù)是<b>'?+?jsonStu[i].score?+?'</b></li>');
????????????});?
????????});
????????</script>
????</body>
</html>