按位运算符

位运算符用于（二进制）数字：

Operator	Name	Description	Example	尝试一下
&	AND	Sets each bit to 1 if both bits are 1	x & y	尝试一下 »
\|	OR	Sets each bit to 1 if one of two bits is 1	x \| y	尝试一下 »
^	XOR	Sets each bit to 1 if only one of two bits is 1	x ^ b	尝试一下 »
<<	Zero fill left shift	Shift left by pushing zeros in from the right	x << 2	尝试一下 »
>>	Signed right shift	Shift right by pushing copies of the leftmost bit in from the left, and let the rightmost bits fall off	x >> 2	尝试一下 »