Read the file below, why is the running result 1 2 3 4 5 6 7 7 an additional 7

superandy

while (fin.read((char *)&x,4))
{
cout << x<< "";
}

sun88888

Change the following to
do {
fin.read((char *)&x,4);
cout << x<< "";
} while (!fin.eof());
》》
while (fin.read((char *)&x,4))
{
     cout << x<< "";
}
There is no problem