Thanks reply, I almost understand it, But my problem is, I have 2 panels, sames Atlas,Fonts,Layers, Z value of Panels A is -1, value of Panel B is 0, It looks right in Scene Window(0.jpg), but error in Game Wiindow(1.jpg). In fact, The B received Event before A. I try to set Z value of A is -10. Everything is ok.
My trouble is, i don't know how to control the Z value of Panel accurate , Right now i just can try the Z value to correct.