Use if-then-else structures

Use the

if-then-else

structure to allow an expression to make a decision. The format of the structure is:

If

statement

Then

value1

Else

value2

If the

statement

is true, the expression returns

value1

. If the

statement

is false, the expression returns

value2

.

The

else

portion of the statement is required.

You can create even more complex expressions by nesting if-then-else statements.