vb.net connection operators and logical operators

One, join operators
The concatenation operation is to concatenate two expressions together, with the operator "&" and "+", and if the operand is of type "String", then the two operators perform the same function, as shown in the following table:

Operator	Name	Type	Description
+	Plus connectors	Binocular operator	If the two operands are "string", the two operands are concatenated into a string, otherwise the plus sign is processed
&	Connection character	Binocular operator	To force the operand to "String" and then connect the operation

Two, logical operators

Logical operators are often used to represent complex relationships. For example, if x is greater than or equal to zero, the square root of x is taken, which can be expressed in vb.net as:
If x>0 OR x=0 Then
X=MATH.SQRT (X)
End If
The logical operators are shown in the following table:

Operator	Name	Type	Description
and	And	Binocular operator	A and B means "true" when both A and b,a and B are "true", otherwise "False"
Not	Non -	Monocular operator	Not a indicates that the a,a is 1 o'clock, the result is 0;a is 0 o'clock, and the result is 1
OR	Or	Binocular operator	The result is "false" when A or B indicates "false" for A or b,a and B, or "True"
Xor	XOR or	Binocular operator	A XOR B means "True" if A or b,a, B is not equal, or False