以下是我地代码，其中地grid总是输出5条数据（总共有五条）
<!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></title>
<link rel="Stylesheet" type="text/css" href=http://topic.csdn.net/u/20110713/16/"ext-2.0.2/resources/css/ext-all.css" />
<script type="text/javascript" src=http://topic.csdn.net/u/20110713/16/"ext-2.0.2/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src=http://topic.csdn.net/u/20110713/16/"ext-2.0.2/ext-all.js"></script>
<script type="text/javascript">
Ext.onReady(function () {
var cm = new Ext.grid.ColumnModel([
{ header: '编号', dataIndex: 'id' },
{ header: '名称', dataIndex: 'name' },
{ header: '描述', dataIndex: 'descn' }
]);
var data = http://topic.csdn.net/u/20110713/16/[
['1', 'name1', 'descn1'],
['2', 'name2', 'descn2'],
['3', 'name3', 'descn3'],
['4', 'name4', 'descn4'],
['5', 'name5', 'descn5']
];
var store = new Ext.data.Store({
proxy: new Ext.data.MemoryProxy(data),
reader: new Ext.data.ArrayReader({}, [
{ name: 'id' },
{ name: 'name' },
{ name: 'descn' }
])
});
store.load();
var grid = new Ext.grid.GridPanel({
autoHeight: true,
renderTo: ‘grid’,
store: store,
cm: cm,
bbar: new Ext.PagingToolbar({
cls: ‘rightPage’,
pageSize: 2,
store: store,
displayInfo: true,
displayMsg: ‘输出第 {0} 条到 {1} 条记录，一共 {2} 条’,
emptyMsg: "没有记录"
})
});
store.load({ params: { start: 0, limit: 2} });
});
</script>
</head>
<body>
<div id="grid"></div>
</body>
</html>