Recent mdk526, edit the settings using the utf-8, the normal editing window Chinese, but the compiler when prompted warning: # 870-D: invalid multibyte character sequence, the solution is very simple, misc editing options which fill --no_multibyte_chars or locale = english, can be successfully compiled.
But after the compilation is completed there is a worry about a thing, the Chinese market a lot of serial tools are gbk encoding, it does not recognize the serial Chinese utf-8, you need to find a dedicated serial port support tools.
After asking to find a teraterm-4.97.exe, this is the support of the Chinese, only you need to be modified as follows.
Setup->Terminal
locale: chinese
CodePage: 936