(As the mainstream software of UI interface design, sketch has become one of the necessary software for UI designers. 1. Do you really use sketch effectively and fully? 2. Have you ever encountered the dilemma of disordered layers and components, which affects the efficiency of design? 3. Is there any situation that components and other elements cannot be shared in team cooperation, which affects the progress of the project? This course will take you away from the wild era of design, get rid of the above pain points and improve the efficiency of sketch.)