<分区>
我正在制作一个非常简单的函数，其中我制作了一个整数数组，我在一个文件中进行了写入，然后我从同一个文件中读取并返回放入该文件的值的数量。从技术上讲，该值应与数组的长度相同，但结果却不同。我在循环中进行了一些检查，但不了解问题出在哪里。
int len = 5;
int main()
{
int A[len];
for (int i = 0; i < len; i = i + 1) {
cout << "insert a value: " << endl;
cin >> A[i];
}
ofstream file;
file.open("trial.txt");
for (int i = 0; i < len; i = i + 1) {
file << A[i] << '\t';
}
file.close();
ifstream file1;
file1.open("trial.txt");
int val;
int conta = 0;
cout << "count before while" << conta << endl;
while (!file1.eof()) {
file1 >> val;
cout << "i am val: " << val << endl;
cout << "i am conta:" << conta << endl;
conta = conta + 1;
}
cout << "i am conta after while: " << conta << endl;
cout << "the value should be 5: " << conta; //instead it shows 6
file1.close();
}