某些设备的存储区只能按字节存储16进制数。此时写入读出汉字的处理，就比较困难。本代码解决了这个问题。本人在超高频RFID芯片存储区中测试通过。-Some devices can only store a byte stored in hexadecimal. At this writing and reading Chinese characters deal with, it is more difficult. This code solves this problem. I am in t