摘要：//The arrow operator has no inputs. Technically, it can return whatever you want, but it should return something that either is a pointer or can becom 阅读全文

摘要：#include<iostream> using namespace std; //测试 template 里面是否还可以有 template class alloc{ }; template <typename T,class Alloc=alloc> class vector{ public: 阅读全文