C++的类型

char :8位,用来放ANSI字符集。char *str="abc";

wchar_t:16为，用来存放unicode字符集。wchar_t *str=L"abc";加上L，编译器自动形成宽字符

            WCHAR就是wchar_t

            WCHAR有时候是unsigned short

            typedef WCHAR *NWPSTR, *LPWSTR, *PWSTR;