fs.readlinkSync(path[, options])


    返回符号链接的字符串值。

    Returns the symbolic link's string value.

    See the POSIX readlink(2) documentation for more details.

    The optional options argument can be a string specifying an encoding, or an object with an encoding property specifying the character encoding to use for the link path returned. If the encoding is set to 'buffer', the link path returned will be passed as a <Buffer> object.