vector类方面的笔记

原贴如下：http://blog.youkuaiyun.com/longshengguoji/article/details/8507394#cpp

因为没有使用私有成员变量 ，所以我改成了私有成员变量的使用规则

但感觉代码有部分不妥，就最后一个而言进行如下修改

两个类 包含两个.h和两个.cpp   最后有个主程序cpp

分别写的。

#pragma once
#include <string>
#include <iostream>
using std::string;
class CStudent
{
public:
	CStudent();
	~CStudent();
public:
	CStudent(string strNO, string strName, string strSex, string strDate);
	void Display();
	string StrNO();
private:
	string m_strNO;
	string m_strName;
	string m_srtSex;
	string m_strDate;
};

#pragma once
#include "Student.h"
#include <vector>
using std::vector;
class CStudCollect
{

public:
	CStudCollect();
	~CStudCollect();
public:
	void Add(CStudent &s);
	CStudent*Find(string strNO);

private:
	vector<CStudent> m_vStud;
};

#include "stdafx.h"
#include "Student.h"
#include <iostream>
using std::cout;
using std::endl;


CStudent::CStudent()
{
}


CStudent::~CStudent()
{
}

CStudent::CStudent(string strNO, string strName, string strSex, string strDate) :m_strNO(strNO), m_strName(strName), m_srtSex(strSex), m_strDate(strDate){}
void CStudent::Display()
{
	cout << m_strNO << "\t";
	cout << m_strName << "\t";
	cout << m_srtSex << "\t";
	cout << m_strDate << "\t";
}
string CStudent::StrNO()
{
	return  m_strNO;
}

#include "stdafx.h"
#include "StudCollect.h"
#include "Student.h"

CStudCollect::CStudCollect()
{
}


CStudCollect::~CStudCollect()
{
}

void CStudCollect::Add(CStudent &s)
{
	m_vStud.push_back(s);
}
CStudent* CStudCollect::Find(string strNO)
{
	bool bFind = false;
	int i;
	for (  i = 0; i < m_vStud.size(); i++)
	{
		CStudent& s = m_vStud.at(i);
		if (s.StrNO() == strNO)                   //对象不能访问私有成员函数，所以s.m_StrNo 这种写法是错的。只能写个函数返回私有成员值。
		{
			bFind = true;
			break;
		}
	}
	CStudent*s = NULL;
	if (bFind)
	{
		s = &m_vStud.at(i);		
	}
	return s;
}

// vector4.0.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <iostream>
#include <vector>
#include <string>
#include "Student.h"
#include "StudCollect.h"
using namespace std;


int _tmain(int argc, _TCHAR* argv[])
{
	CStudent s1("1001", "zhangsan", "boy", "1998-10-10");
	CStudent s2("1002", "lisi", "boy", "1988-8-25");
	CStudent s3("1003", "wangwu", "boy", "1989-2-14");
	
	CStudCollect s;
	s.Add(s1);
	s.Add(s2);
	s.Add(s3);
	CStudent *ps = s.Find("1102");
	if (ps)
	{
		ps->Display();
	}

	return 0;
}