C++学习day7

思维导图：

使用vector实现一个简单的本地注册登录系统 注册：将账号密码存入vector里面，注意防重复判断 登录：判断登录的账号密码是否正确

#include <iostream>
#include <cstring>
#include <cstdlib>
#include <unistd.h>
#include <sstream>
#include <vector>
#include <memory>

using namespace std;

struct user {
    string name;
    string pwd;
};


//输出
template <class T>
class myVector:public vector<T>
{
    public:
        myVector& operator<<(const T& val)
        {
            vector<T>::push_back(val);
            return *this;
        }
};


                                                       
int main(int argc,const char** argv){

    user stu;
    cout << "请输入注册的账号和密码" << endl;
    cin >> stu.name ;
    cin >> stu.pwd ;

    vector<string> v;
    v.push_back(stu.name);
    v.push_back(stu.pwd);


    user stu1;
     cout << "请输入已有的账号和密码" << endl;
     cin >> stu1.name ;
     cin >> stu1.pwd ;

     if(v[0]==stu1.name && v[1]==stu1.pwd)
     {
         cout << "登录成功" << endl;
     }
     else
     {
         cout << "登录失败" << endl;
     }


    return 0;
}