//将字符转换为Unicode码中字符对应十进制数字 int byte0 = 'A' & 0xff;//byte0=65
参考文档:http://baike.baidu.com/view/2602518.htm
http://blog.idf.cn/2014/02/unicode-isnt-harmful-for-health-unicode-myths-debunked-and-encodings-demystified/
