Profile Topics Started Replies Created Engagements Favorites Search replies: Forum Replies Created Viewing 1 post (of 1 total) Author Posts 2021年2月1日 at 下午5:53 in reply to: 作业3编译错误 #7646 Score: 0 WaterBearParticipant 我也是这个问题，弄了很久。自行编译main.cpp的时候还报错‘optional’ in namespace ‘std’ does not name a template type Author Posts Viewing 1 post (of 1 total)
