讀取檔案內容3

//讀取檔案內容3
//https://www.facebook.com/xiangyu.guo1/posts/2288195364542005
//https://www.facebook.com/groups/1403852566495675/permalink/2189564644591126/
//IDE：Microsoft Visual Studio Community 2017
//author: Kuo, Hsiang-Yu
//author: 90ED_7FD4_5B87

#define _CRT_SECURE_NO_WARNINGS

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include <fstream>

using namespace std;

struct item
{
    char id[10] = "";
    char name[10] = "";
    char type[10] = "";
    char year[10] = "";
};

int main(int argc, char *argv[])
{
    system("color f0");

    int i = 0;
    struct item *data = NULL;
    fstream file;
    char buffer[80] = "";
    char input[10] = "";
    bool findData = false;
    int countLine = 0;

    file.open("C:\\Users\\acer\\Documents\\Visual Studio 2017\\Projects\\Sun_Chuan_Homework1\\test.txt", ios::in);

    if (!file)
    {
        cout << "檔案無法開啟。" << endl;
        system("pause");
        return 0;
    }
    else
    {
        cout << "開始讀取資料。" << endl;

        do
        {
            file.getline(buffer, sizeof(buffer));
            cout << buffer << endl;
            countLine = countLine + 1;
        } while (file.eof() == false);
        file.close();

        data = (struct item *)malloc(countLine * sizeof(struct item));

        file.open("C:\\Users\\acer\\Documents\\Visual Studio 2017\\Projects\\Sun_Chuan_Homework1\\test.txt", ios::in);
        i = 0;
        do
        {
            file.getline(buffer, sizeof(buffer));
            sscanf(buffer, "%s %s %s %s", &data[i].id, &data[i].name, &data[i].type, &data[i].year);
            i = i + 1;
        } while (file.eof() == false);
        file.close();

        cout << "資料讀取完畢。" << endl;
    }
    cout << endl;

    cout << "請輸入檢索資料：";
    cin >> input;

    cout << endl;
    for (i = 0; i < countLine; i++)
    {
        if (strcmp(input, data[i].type) == 0)
        {
            printf("%-8s%-7s%-8s%s\n", data[i].id, data[i].name, data[i].type, data[i].year);
            findData = true;
        }
    }

    if (findData == false)
    {
        cout << "查無資料。" << endl;
    }

    free(data);//釋放記憶體

    cout << endl;
    system("pause");
    return 0;
}