UI即User Interface（用户界面）的简称。UI设计则是指对软件的人机交互、操作逻辑、界面美观的整体设计。好的UI设计不仅是让软件变得有个性有品味，还要让软件的操作变得舒适、简单、自由、充分体现软件的定位和特点。UI还有其它的意义，如Unit Interval，Univ of Iowa，Unlock Instruction，Urgent Interrupt。-UI User Interface (UI) referred. UI design refers to the overall design of the human-computer interaction software, operating logic, attractive interface. Good UI design software becomes individual taste, but also to allow the operation of the software has become comfortable, simple and free, fully reflects the positioning and characteristics of the software. UI significance, such as the Unit Interval, Univ of Iowa, Unlock Instruction Urgent Interrupt.