JQuery操作TABLE，及console.info问题。

还用alert 吗？看看console.info吧，代码的测试平台：ie9, firefox12
1. [代码][JavaScript]代码
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style type="text/css">
table {
border: 1px solid black;
border-collapse: collapse;
300px;
}

table td {
border: 1px solid black;
50%;
}

table th {
border: 1px solid black;
50%;
}

tbody th {
background-color: #06C;
}
</style>
</head>
<body>
<div>
<p id='para'>
<a id="delTbody" href="javascript:;">del tbody</a>
<a id='delRow' href="javascript:;">del row</a>
<a id='tbodyEmpty' href="javascript:;">tbody empty</a>
</p>
</div>
<table id='tab'>
<thead>
<tr>
<th>name</th>
<th>sex</th>
</tr>
</thead>
</table>
<script type="text/javascript" src="../../jslib/jquery-1.7.1.js"></script>
<script type="text/javascript">
(function(w){
// ie8 or ie9 console problem solution.
if(! w.console){
//alert(".....");
w.console = {
info : function(){},
error : function(){},
log : function(){}
};
}
})(window);

var tab = $('#tab');

var jsonArr = [{'name' : 'zhai', 'sex' : 'F'},
{'name' : 'lsie', 'sex' : 'M'},
{'name' : 'abcd', 'sex' : 'M'},
{'name' : 'jia1', 'sex' : 'F'}
];

(function(){
console.info('OK');
var body = $("<tbody></tbody>");

for(var i = 0; i < jsonArr.length; i++){
var j = jsonArr[i];
var td1 = $('<td>' + j.name + '</td>');
var td2 = $('<td>' + j.sex + '</td>');
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var tr = $('<tr></tr>');
tr.append(td1);
tr.append(td2);
body.append(tr);
}

console.info(body.toString());
tab.append(body);
})();

$(document).ready(function () {
$('#para').click(function(event){
//console.info("para ......" + event);

var id = event.target.id;
switch(id){
case 'delTbody' :
console.info('del t');
$("#tab tbody").remove();
break;
case 'delRow' :
console.info('del r');
try{板报设计
tab[0].tBodies[0].deleteRow(0);
//tab[0].deleteRow(1);
}catch(e){
console.error('rows length is zero.' + e);
}
break;
case 'tbodyEmpty' :
$('#tab tbody').empty();
break;
}
});

/*
$('#delRow').click(function(){
console.info('del r');
$('table tbody').empty();
});
*/
});

</script>
</body>
</html>