^(bitwise exclusive Or).
一个数,进行异或同一个数两次,将得到原来的数,例如:
6 ^ 4 ^ 4 = 6;
0000-0000-0000-0110
^ 0000-0000-0000-0100
------------------------------
= 0000-0000-0000-0010
^ 0000-0000-0000-0100
------------------------------
= 0000-0000-0000-0110
= 6.
//例如用此可做简单的加密运算.
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