filehandle.appendFile(data[, options])

• data <string> | <Buffer> | <TypedArray> | <DataView> | <AsyncIterable> | <Iterable> | <Stream>

• options <Object> | <string>

  • encoding <string> | <null> 默认值：'utf8'

    ¥encoding <string> | <null> Default: 'utf8'

• 返回：<Promise> 成功时将使用 undefined 履行。

  ¥Returns: <Promise> Fulfills with undefined upon success.

filehandle.writeFile() 的别名。

¥Alias of filehandle.writeFile().

当在文件句柄上进行操作时，则无法将模式更改为使用 fsPromises.open() 设置的模式。因此，这相当于 filehandle.writeFile()。

¥When operating on file handles, the mode cannot be changed from what it was set to with fsPromises.open(). Therefore, this is equivalent to filehandle.writeFile().