说明:
This functions aims to find a suitable coding for the locale named, by default the current locale, and if it is a UTF-8 locale a suitable single-byte encoding.
貌似是个返回本地编码的函数
用例:
localeToCharset()
[1] "CP936"
localeToCharset ( locale = Sys.getlocale ( "LC_CTYPE" ) )
[1] "CP936"