for执行顺序讲解

for(long i = 0L, power = 1L ; i <= max ; i++, power +=power)

      cout << endl

           << setw(10) << i<< setw(10) << power;     // Loop statement

先i = 0L, power = 1L

然后i <= max

然后cout << endl

           << setw(10) << i<< setw(10) << power

然后i++, power += power

按此顺序循环10次结束。