Extjs 设置控件 z-index 层次

Ext.Msg.show({
    title:'Request Failed',
    msg:"Error, The request was not found in the database",
    icon: Ext.MessageBox.ERROR,
    buttons: Ext.Msg.OK
});
Ext.MessageBox.getDialog().getEl().setStyle('z-index','80000');

var p = new Ext.Panel({....});

p.getEl().setStyle('z-index','80000');

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