匿名Number Range
The value is constrained to a specified range.
示例：
代码：
<div class="easyui-panel" style="width:100%;max-width:400px;padding:30px 60px;">
<div style="margin-bottom:20px">
<input class="easyui-numberbox" data-options="label:'Amount:',labelPosition:'top',min:10,max:90,precision:2" style="width:100%;">
</div>
<div style="margin-bottom:20px">
<input class="easyui-numberbox" data-options="label:'Weight:',labelPosition:'top',min:10,max:90" style="width:100%;">
</div>
<div style="margin-bottom:20px">
<input class="easyui-numberbox" data-options="label:'Age:',labelPosition:'top',min:0,max:100" style="width:100%;">
</div>
</div>