匿名Basic MaskedBox
The maskedbox enforces its structure as the user types.
示例：
代码：
<div class="easyui-panel" title="Basic MaskedBox" style="width:100%;max-width:400px;padding:30px 60px;">
<div style="margin-bottom:20px">
<input class="easyui-maskedbox" mask="(999) 999-9999" label="Phone Number:" labelPosition="top" style="width:100%">
</div>
<div style="margin-bottom:20px">
<input class="easyui-maskedbox" mask="9999 9999 9999 9999" label="Credit Card:" labelPosition="top" style="width:100%">
</div>
<div style="margin-bottom:20px">
<input class="easyui-maskedbox" mask="99%" label="Percent:" labelPosition="top" style="width:100%">
</div>
</div>