摘要： 从今天起，每天读c++primer5 至少50页，力争100页。 每晚完成任务后上传reading notes， 虽然只是摘录书中一些原话，但也要保持。贵在坚持！2.1.1 Arithmetic Typeswchar_t type is guaranteed to be large enough to hold any character in the machine's largest extended character set. The types char16_t and char32_t are intended for Unicode characters. (Unicod 阅读全文