这个问题是在我回答thisanotherquestion的时候提出的.N333723.3.6.3“vector容量”说(在770页):voidresize(size_typesz);Effects:Ifsz,equivalenttoerase(begin()+sz,end());.Ifsize(),appendssz-size()value-initializedelementstothesequence.Requires:TshallbeCopyInsertableinto*this.然而,clang++saysit'sokaythoughTisnotcopyable.我认为resiz