C++讀取檔案，將檔案內容讀取到struct中

struct定義：

#include "stdafx.h"//記憶體對齊1位元組#pragma pack(1)struct Day{int DateTime;int Open;int High;int Low;int Close;};#pragma pack()

指標讀取：

// Test.cpp : Defines the entry point for the console application.//#include "stdafx.h"#include "Day.cpp"#include <sys\stat.h>using namespace std;int _tmain(int argc, _TCHAR* argv[]){fstream f;const char* filename = "e:\\t.dat";f.open(filename,ios::binary|ios::in);struct _stat info;_stat(filename,&info);int filesize = info.st_size;const int SIZE_OF_DAY = sizeof(Day);cout<<"sizeof(Day)="<<SIZE_OF_DAY<<endl;const int days_count = filesize/sizeof(Day);cout<<"day_count="<<days_count<<endl;Day* day = new Day[days_count];//Day* dayTemp=day;for(int i=0;i<days_count;i++){Day* p2Day = day + i;f.read((char*)p2Day,SIZE_OF_DAY);cout<<p2Day->DateTime<<endl;cout<<p2Day->Close<<endl;}f.close();delete[] day;system("pause");return 0;}