fs.rm(path[, options], callback)

异步地删除文件和目录（以标准 POSIX rm 实用工具为模型）。 除了可能的异常之外，没有为完成回调提供任何参数。

• path <string> | <Buffer> | <URL>
• options <Object>
  • force <boolean> When true, exceptions will be ignored if path does not exist. Default: false.
  • maxRetries <integer> If an EBUSY, EMFILE, ENFILE, ENOTEMPTY, or EPERM error is encountered, Node.js will retry the operation with a linear backoff wait of retryDelay milliseconds longer on each try. This option represents the number of retries. This option is ignored if the recursive option is not true. Default: 0.
  • recursive <boolean> If true, perform a recursive removal. In recursive mode operations are retried on failure. Default: false.
  • retryDelay <integer> The amount of time in milliseconds to wait between retries. This option is ignored if the recursive option is not true. Default: 100.
• callback <Function>
  • err <Error>

Asynchronously removes files and directories (modeled on the standard POSIX rm utility). No arguments other than a possible exception are given to the completion callback.