摘要: template <class T1, class T2> struct std::pair { typedef T1 first_type; typedef T2 second_type; T1 first; T2 second; pair() :first(T1()), second(T2()) 阅读全文
posted @ 2018-09-07 22:13 东宫得臣 阅读(239) 评论(0) 推荐(0) 编辑