我一直在做我的项目，我需要做的最后一件事就是在程序启动时保存到文件并开始从文件中读取结构数组，但是我不明白为什么代码没有加载文件的信息。我知道它确实保存了一些东西，因为我可以打开。dat文件并在文本编辑器中读取它。我为糟糕的风格道歉，但我还是新来的。这只是代码中那个函数的示例:

#include <iostream>
#include <string>
#include<fstream>

using namespace std;

struct property {
    int num;
    char nBrok[50];
    char type[10];
    string adress;
    char outlook[20];
    double price;
    double size;
    int nRooms;
    int floor;
    int status;
};
fstream fp;

void fileWrite(property bDanni[], int n) {
    fp.open("dbase.dat", ios::binary | ios::out);
    if (!fp) {
        cout << "\n Error in file \n"; exit(1);
    }
    fp.write((char*)bDanni, sizeof(property) *n);
    fp.close();
}

int fileRead(property bDanni[]) {
    long pos; int n = 0, i; property b;
    fp.open("dbase.dat", ios::binary | ios::in);
    if (!fp) {
        cout << "\n file does not exist\n"; return n;
    }
    fp.seekg(0l, ios::end);
    pos = fp.tellg();
    fp.close();
    n = pos / (sizeof(property));
    fp.open("dbase.dat", ios::binary | ios::in);
    if (!fp) {
        cout << "\n Error in file \n"; exit(1);
    }
    for (i = 0; i < n; i++) {
        fp.read((char*)&b, sizeof(property));
        bDanni[i] = b;
    }
    fp.close();
    return n;
}
int main() {
    property bDanni[100];
    char answer;
    int total = 0;
    cout << "Do you wat to read from the save file?(y/n): ";
    cin >> answer;
    if (answer == 'y') {
      int total = fileRead(bDanni);
    }
}