学习使用groovy（翻译稿之第一章)

没什么好说的，一看就明白

Bitwise Operations

From Groovy 1.0 beta 10, Groovy supports bitwise operations: （从grovvy1.0beta10开始支持）
<<. >>, >>>, |, &, ^, and ~.

	_Meaning_
<<	Bitwise Left Shift Operator
>>	Bitwise Right Shift Operator
>>>	Bitwise Unsigned Right Shift Operator
|	Bitwise Or Operator
&	Bitwise And Operator
^	Bitwise Xor Operator
~	Bitwise Negation Operator
<<=	Bitwise Left Shift Assign Operator
>>=	Bitwise Right Shift Assign Operator
>>>=	Bitwise Unsigned Right Shift Assign Operator
|=	Bitwise Or Assign Operator
&=	Bitwise And Assign Operator
^=	Bitwise Xor Operator

For example,

assert (1 << 2) == 4         // bitwise left shift
assert (4 >> 1) == 2         // bitwise right shift
assert (15 >>> 1) == 7       // bitwise unsigned right shift
assert (3 | 6) == 7          // bitwise or
assert (3 & 6) == 2          // bitwise and
assert (3 ^ 6) == 5          // bitwise xor
assert (~0xFFFFFFFE) == 1    // bitwise negation