jQuery 表格自动增加

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<html dir="ltr" lang="zh-CN">

<head>

<meta charset="UTF-8" />

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<title>jQuery 表格自动增加</title>

<meta name="keywords" content="jQuery, 表格, table, 自动增加" />

<meta name="description" content="jQuery表格自动增加" />

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<style type="text/css">

table { width:800px; margin:50px auto; border-collapse:collapse; border-spacing:0; }

table tr, table th, table td { border:1px solid #ddd; font-size:12px; }

table tr td:first-child { width:30px; text-align:center; }

table td input { width:100%; height:100%; padding:5px 0; border:0 none; }

table td input:focus { box-shadow:1px 1px 3px #ddd inset; outline:none; }

</style>

<script type="text/javascript">

var k = {};

//alert(typeof k);

var a ={id:1,name:'huangxiaoxin',description:'just believe in myself'};

//alert(a.description);

</script>

<body>

<table id="count">

    <tr><th>序号</th><th>姓名</th><th>金额[USD]</th><th>时间</th><th>项目</th><th>单位</th><th>备注</th></tr>

    <tr>

        <td>1</td>

        <td><input type="text" /></td>

        <td><input type="text" /></td>

        <td><input type="text" /></td>

        <td><input type="text" /></td>

        <td><input type="text" /></td>

        <td><input type="text" /></td>

    </tr>

</table>



<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>



<script type="text/javascript">

$(function(){





/* 这是一种方法，但是不精简，不过很好理解，就像面向过程编写代码一样。

    var oTable = $("#count"), oTr = '', oInput = '', eEle = '';

    oTable.on('mouseover', function(){

        oTr = oTable.find('tr').last();

        oInput = oTr.find('input');

        eEle = oTr.clone();

        oInput.on('click', function(){

            var parent = $(this).parents('tr');

            if(oTr.index() == parent.index()){

                oTable.append(eEle);

            }

        });

    });

*/

//这是第二种方法，比较精简，要看对jQ的理解了。

var oTable = $("#count"), iNum = 1, eEle = '';

oTable.on('click', function(e){

    var target = e.target,

        oTr = $(target).closest('tr');

    if(oTr.index() == oTable.find('tr').last().index()){

         iNum++;

        eEle = oTr.clone();

        eEle.find('td').eq(0).text(iNum);

    }

    oTable.append(eEle);

 });



});

</script>

 </body>

</html>