另外提醒一点，如果想跟踪除了某个组件之外的所有组件，还可以使用另一个位操作符。
Just a side note, there is also a bitwise operator you can use if you want to trace everything except a certain component.
如果想跟踪不止一个特定的tracelevel属性，那么可以使用位操作符(|)来分隔不同的属性。
If you want to trace more than one specific traceLevel property, then you can use bitwise operator (|) to separate the different properties.
对称的操作符，如算术操作符、相等操作符、关系操作符和位操作符，最好定义为普通非成员函数。
Symmetric operators, such as the arithmetic, equality, relational, and bitwise operators, are best defined as ordinary nonmember functions.
枚举也可以与集合结合使用，而且非常像新的enummap构造，Tiger提供了一套新的EnumSet实现，允许您使用位操作符。
Enums can also be used in conjunction with sets, and much like the new EnumMap construct, Tiger supplies a new set implementation EnumSet that allows you to work with bitwise operators.
PowerPC上的每条指令都正好是32位长，指令的opcode(操作符，告诉处理器这条指令是什么的代码)占据了前6位。
Each instruction on the PowerPC is exactly 32 bits long, with the instruction's opcode (the code telling the processor which instruction it is) taking the first six bits.
PowerPC上的每条指令都正好是32位长，指令的opcode(操作符，告诉处理器这条指令是什么的代码)占据了前6位。
Each instruction on the PowerPC is exactly 32 bits long, with the instruction's opcode (the code telling the processor which instruction it is) taking the first six bits.
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