字符编码的几篇文章

http://blog.csdn.net/iscandy/article/details/3859219

http://www.ruanyifeng.com/blog/2007/10/ascii_unicode_and_utf-8.html

http://blog.poxiao.me/p/unicode-character-encoding-conversion-in-cpp11/

http://blog.csdn.net/zj510/article/details/38368397