我刚学C++不久 ,对C++还不太了解,请高手门多加指点.
把原代码写出,尽可能多加注释~~~~~~~~~~~~~~~

#include <iostream>
#include <fstream>

using namespace std;

int main(){
int a[10]; //use int for example
ifstream fin("filename");
for (int temp,index = 0;index < 10;fin >> temp,a[index++] = temp);//extract data from file
cout << a[9];
}