Visual Basic 2005 for Programmers: Deitel Developer Series, Second Edition

5.8. Compound Assignment Operators

Visual Basic provides several compound assignment operators for abbreviating assignment statements. For example, the statement

value = value + 3
				

can be abbreviated with the addition assignment operator, += as

value += 3
				

The += operator adds the value of the right operand to the value of the left operand and stores the result in the left operand’s variable. Any statement of the form

					variable = variable
					operator
					expression
				

can be written in the form

					variable
					operator= expression
				

where operator is one of the binary operators +, -, *, ^, &,/ or \, and variable is an lvalue (“left value”). An lvalue is a variable or property that can appear on the left side of an assignment statement. We will learn how to ...