Extjs 数字格式

{
            xtype: 'numberfield',
            fieldLabel: '月价格',
            allowBlank: false,
            id: 'MTH_PRC',
            allowNegative: false,
            minValue: 0,
            maxValue:9999999,
            bind: '{formModel.MTH_PRC}'
            //regex: /^\d{1,7}(\.\d{1,2})?$/,
        },