hehern的博客

vector push_back普通指针的感想#include <vector>#include <iostream>//vector push_back是变量内容的拷贝，而且是深拷贝，对于数据来说，变量中存储的内容就是变量值。对于指针来说，变量内存储的内容是指针指向的内存地址，/*1 2 3 4 5 5 5 5 1 2 3 4*/void test1(){ std::vector<int> vec; int num1 = 1; in

#include <iostream>using namespace std;class test{ public: test(){ cout << "constructor" << endl; } test(const test& a) { cout << "copy constructor" << endl; } ~test(){} t