Chinese characters in a string(GDC)

[ryuka]

Hey , I 'm a chinese d users , My d compiler (gdc) can't work well when using a string contains chinese characters . 
when I type "ÄúºÃ" or "ÄúºÃ"w in my source code as a wchar [] , My gdc display some compile error message as below:
hello.d:33: invalid UTF-8 sequence
hello.d:33: invalid UTF-8 sequence
hello.d:33: invalid UTF-8 sequence
hello.d:33: invalid UTF-8 sequence
:: === Build finished: 4 errors, 0 warnings ===
I don't know if dmd has the same problem , but in gdc I can't find a way to type chinese characters into a wchar [] .I don't want  to use hex values.so I came here for some help
thanks