INT和INT - 当我在两个变量之间使用AND时它在做什么？

Question

Dim aTest As Int64 = 4 And 1 = 0
Dim aTest As Int64 = 4 And 2 = 0
Dim aTest As Int64 = 4 And 3 = 0
Dim aTest As Int64 = 4 And 4 = 4
Dim aTest As Int64 = 4 And 5 = 4
Dim aTest As Int64 = 4 And 6 = 4

在这两个变量之间进行AND的目的是什么？为什么这些价值观会如此？

之前从未遇到过这种情况。

Answer 1

它的意思是

0100     0100    0100    0100
0001     0010    0011    0100
----     ----    ----    ----
0000     0000    0000    0100


0100
0101
----
0100

请注意，如果两个数字中的相应位都是1，则结果只有一个。