C++ 一个交换两数值的神奇代码 有空可以看看

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void swap(int *a, int *b)
{
    *a = (*a&~*b)|(*b&~*a);
    cout << *a << " " << *b <<endl;
    *b = (*a&~*b)|(*b&~*a);
    cout << *a << " " << *b <<endl;
    *a = (*a&~*b)|(*b&~*a);
    cout << *a << " " << *b <<endl;
}