struct和vector序列化保存数据_struct vector

本文主要记录一下两点：
1、struct序列化保存
2、vector序列化保存

#include<iostream>
#include<Windows.h>
#include<vector>
#include<fstream>
#include<iterator>


using std::vector;
using std::cout;
using std::endl;
using std::ifstream;
using std::ofstream;


const int MAX_DATA = 500;

struct stInfo
{
	int nAge;
	char szName[20];
	char chSex;
	stInfo(int nAge,char* pName,char szSex)
	{
		this->nAge = nAge;
		strcpy_s(this->szName, pName);
		this->chSex = szSex;

	}
	stInfo()
	{
		memset(this, 0, sizeof(stInfo));
	}
	stInfo& operator=(const stInfo&para)
	{
		this->nAge = para.nAge;
		strcpy_s(this->szName, para.szName);
		this->chSex = para.chSex;
		return *this;
	}

	void Print()
	{
		cout << "Name:" << szName << "\tYear:" << nAge << "\tSex:" << chSex << endl;
	}
};

int main()
{
	//struct serize, save memory
	stInfo info(19, "helen", 'M');
	BYTE *pSrc(new BYTE[MAX_DATA]);
	ZeroMemory(pSrc, MAX_DATA);
	*(stInfo*)pSrc = info;
	//Write
	ofstream fout("1.txt", std::ios::out | std::ios::binary);
	if (fout.is_open())
	{
		fout.write((char*)pSrc, sizeof(stInfo));
		fout.close();
	}
	delete[]pSrc;
	pSrc = nullptr;


	//Read
	char szData[MAX_DATA] = { 0 };
	ifstream fin("1.txt", std::ios::binary);
	if (fin.is_open())
	{
		fin.read(szData, MAX_DATA);
		fin.close();
	}

	BYTE *pData = new BYTE[MAX_DATA];
	ZeroMemory((void*)pData, MAX_DATA);

	pData = (BYTE*)szData;
	stInfo infoRst;
	infoRst = *(stInfo*)pData;
	infoRst.Print();
	delete[]pData;
	pData = nullptr;



	//vector Serize
	vector<int>vecData;
	for (int nIndex = 0; nIndex < 5; ++nIndex)
		vecData.push_back(nIndex);
	//写入文件
	ofstream outFile("test.txt", std::ios::out | std::ios::binary);
	if (outFile.is_open())
	{
		copy(vecData.begin(), vecData.end(), std::ostream_iterator<int>(outFile," "));
		outFile.close();
	}
		
	//从文件读取
	vector<int>vecRst;
	ifstream inFile("test.txt", std::ios::binary);
	if (inFile.is_open())
	{
		copy(std::istream_iterator<int>(inFile), std::istream_iterator<int>(), back_inserter(vecRst));
		inFile.close();
	}
		
	for (auto&itData : vecRst)
		cout << itData << ',';
	cout << endl;
	//从文件读取直接输出
	copy(vecData.begin(), vecData.end(), std::ostream_iterator<int>(cout, " "));


	system("pause");
	return 0;
}
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