改UISwitch上的text

为要更改Text的UISwitch建立IB连接：例如mySwitch,在代码中改变文字：

(( UILabel *)[[[[[[ self . mySwitch subviews ] lastObject ] subviews ] objectAtIndex :2] subviews ] objectAtIndex :0]). text = @"Foo" ;

(( UILabel *)[[[[[[ self . mySwitch subviews ] lastObject ] subviews ] objectAtIndex :2] subviews ] objectAtIndex :1]). text = @"Bar" ;