VB.Net 移位运算符
VB.Net 运算符假设变量A保持60，变量B保持13，则：
| 运算符 | 描述 | 示例 |
|---|---|---|
| And | Bitwise AND Operator copies a bit to the result if it exists in both operands. 如果两个操作数都存在，则位与运算符将一个位复制到结果。 |
(A AND B) will give 12, which is 0000 1100 |
| Or | Binary OR Operator copies a bit if it exists in either operand. 二进制OR运算符复制一个位，如果它存在于任一操作数。 |
(A Or B) will give 61, which is 0011 1101 |
| Xor |
Binary XOR Operator copies the bit if it is set in one operand but not both. 二进制XOR运算符复制该位，如果它在一个操作数中设置，但不是两个操作数。 |
(A Xor B) will give 49, which is 0011 0001 |
| Not | Binary Ones Complement Operator is unary and has the effect of 'flipping' bits. 二进制补码运算符是一元的，具有“翻转”位的效果。 |
(Not A ) will give -61, which is 1100 0011 in 2's complement form due to a signed binary number. |
| << | Binary Left Shift Operator. The left operand's value is moved left by the number of bits specified by the right operand. 二进制左移位运算符。 左操作数的值向左移动由右操作数指定的位数。 |
A << 2 will give 240, which is 1111 0000 |
| >> | Binary Right Shift Operator. The left operand's value is moved right by the number of bits specified by the right operand. 二进制右移运算符。 左操作数的值向右移动由右操作数指定的位数。 |
A >> 2 will give 15, which is 0000 1111 |
尝试以下示例来了解VB.Net中提供的所有位运算符：
Module BitwiseOp
Sub Main()
Dim a As Integer = 60 ' 60 = 0011 1100
Dim b As Integer = 13 ' 13 = 0000 1101
Dim c As Integer = 0
c = a And b ' 12 = 0000 1100
Console.WriteLine("Line 1 - Value of c is {0}", c)
c = a Or b ' 61 = 0011 1101
Console.WriteLine("Line 2 - Value of c is {0}", c)
c = a Xor b ' 49 = 0011 0001
Console.WriteLine("Line 3 - Value of c is {0}", c)
c = Not a ' -61 = 1100 0011
Console.WriteLine("Line 4 - Value of c is {0}", c)
c = a << 2 ' 240 = 1111 0000
Console.WriteLine("Line 5 - Value of c is {0}", c)
c = a >> 2 ' 15 = 0000 1111
Console.WriteLine("Line 6 - Value of c is {0}", c)
Console.ReadLine()
End Sub
End Module
当上述代码被编译和执行时，它产生以下结果：
Line 1 - Value of c is 12
Line 2 - Value of c is 61
Line 3 - Value of c is 49
Line 4 - Value of c is -61
Line 5 - Value of c is 240
Line 6 - Value of c is 15
