react-native-lite-fs Install npm install --save react-native-lite-fs API type Callback = (error: Error, result: any)=> any; type Path = string; type Content = Buffer | string | ArrayBuffer; exists (p: Path)=> Promise 0 不存在 1 文件夹 2 文件 stat (p: Path)=> Promise<{length: number, ctime: number, mtime: number, flag: number}> Android 中没有 ctime; mkdir (p: Path, auto: boolean = false)=> Promise touch (p: Path, auto: bool)=> Promise readir (p: Path)=> Promise copy (src: Path, to: Path)=> Promise move (src: Path, to: Path=> Promise remove (item: Path)=> Promise writeFile (p: Path, content: Content)=> Promise 返回写入的字节数 readFile (p: Path)=> Promise open (p: Path)=> Promise File close ()=> Promise tell ()=> Promise seek (offset = 0, )=> Promise read (length: number = DEFAULT_BUFFER_LENGTH, )=> Promise write (content: Content, )=> Promise truncate (length: number, )=> Promise