Providing traditional input methods, such as key, touch, keyboard, and mouse inputs | 提供传统的输入交互方式，例如按键、触控、键盘、鼠标等
Storing declaration files for JavaScript APIs | JavaScript API 公共仓，存放 d.ts 声明文件
Obtaining device status | 获取设备状态
JS UI framework | JS UI开发框架
