关于位演算
关于位运算
const AAA = 0x01 ;
const BBB = 0x02 ;
我定义了2个常量，怎么按位保存？
求高手指点，对于位运算一值很迷糊。
------解决方案--------------------
不明白你的 怎么按位保存 是指什么？
------解决方案--------------------
------解决方案--------------------
3 & 1 = 1
3 & 2 = 2
2 & 1 = 0
2 & 2 = 2
------解决方案--------------------
不理解
难道是 self::BBB & self::AAA;???结果倒是0了
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