centerPanel = new Ext.Panel({
                region : 'center',
                autoShow : true,
                buttonAlign : 'center',
                frame : true
            });

  var seacehPanel = Ext.create('Ext.form.Panel', {
        title: '客户信息',
        renderTo: Ext.getBody(),
        height:120,
        width:'100%',
        bodyPadding: 5,
        collapsible: true,
        collapseMode: 'mini',
        items: [
            {
                xtype: 'fieldset',
                title: '条件查询',
                height: 80,
                width: 1000,
                collapsible: true,
                defaults: {
                    layout: {
                        type: 'hbox',
                        defaultMargins: { top: 0, right: 5, bottom: 0, left: 0} //横向布局
                    }
                },
                items: [
                    {
                        xtype: 'fieldcontainer',
                        defaults: {
                            hideLabel: true
                        },
                        items: [
                             { xtype: 'displayfield', value: '编号:' },
                            {
                                xtype: 'textfield',
                                name: 'firstName',
                                fieldLabel: 'CurNo'
                            }, { xtype: 'displayfield', value: '手机:' },
                            {
                                xtype: 'textfield',
                                name: 'lastName',
                                fieldLabel: 'Phone'
                            }, { xtype: 'displayfield', value: '性别:' },
                            {
                                xtype: 'combo',
                                mode: 'local',
                                fieldLabel: 'Sex',
                                name: 'title',
                                displayField: 'name',
                                valueField: 'value',
                                emptyText: '---请选择--',
                                store: Ext.create('Ext.data.Store', {
                                    fields: ['name', 'value'],
                                    data: [
                                        { name: '男', value: 'Mr' },
                                        { name: '女', value: 'Miss' }
                                    ]
                                })
                            }
                            , {
                                xtype: 'button',
                                text: '查询',
                                width: 80,
                                margin: '10 0 0 130',
                                handler: function() { }
}]
}]
}]
    });