按位或向结果表达式添加位，而按位与只选择两个运算符之间相同的位。

Bitwise-or adds bits to the resulting expression, whereas bitwise-and selects only those bits in common between its two operators.

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这个按比例缩小了的复制品由一位名为斯坦弗雷泽的航海爱好者建造，将于四月作为某海洋博物休闲馆的一部分与公众见面，以纪念“泰坦尼克号”事件100周年。

The scaled-down replica, built by marine enthusiast Stan Fraser, will open up as part of a maritime museum and cafe in time for next April, which will mark the 100th anniversary of the tragedy.

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因此，如果长度值在0到127之间，那么我可以只执行该长度与0xff之间的一个按位AND操作。

Therefore, if the length value is between 0 and 127, I can simply perform a bitwise and operation between the length and 0xff.

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