The writeln() function's args can't be ["一" ，"二"]?

[FrankLike via Digitalmars-d-learn]

> The problem is that you have a wide-character comma (，) there.
>
> This works:
>
>     void main() {
>         writeln(["一", "二"]);
>     }

No,I mean the execute result is error.That doesn't get the ["一", 
"二"],but get the ["涓C","浜?].

Why?

Thank you.

Frank.