UIApp.keyWindow.recursiveDescription().toString()
[[UIApp keyWindow] _autolayoutTrace].toString() ? 只打地址和類
[#0x12e80c800 nextResponder]
*#0x12e80c800
#0x12e50e7d0.selectedViewController
#0x12e519000.viewControllers
#0x12e80c800.backgroundColor = [UIColor redColor]
#0x12e590670.text="100"
ps ax | grep Cycript
cycript -p 1354
choose(類名)來獲取到App中該類所有的實例變量
