我想知道如果我正确地做到这一点，请告诉我，如果我是对的，如果我不能，有人会给我一个解释。谢谢。 下面的代码是什么打印的？
int n = -1;
// n increments after so now n stays at -1 now int k = 3 then n went from -1 to 0
// (increments after, adds 1)
int k = n++ * -3;
// Now n increments before execution so from the result of n++ which was 0 you increment
// before, add 1. So now n = 1 * 4 + 3 which is 7.
cout << ++n * 4 + k;
答案是：7
我这样做的方法是否正确？