VBS Tutorial: Operator-operator (+)

Operator (+)

Calculate the sum of two numbers.

result = expression1 + expression2

Parameters

Result

Any numeric variable.

Expression1

Any expression.

Expression2

Any expression.

Description

You can also use+Operator to connect two strings, but you must still use&To avoid confusion and provide easy-to-understand code.

This is because+It may be difficult to determine whether to perform addition or string connection.

The basic subtype of the expression determines+The operations performed by the operators are shown in the following table:

If	Then
Both expressions are numerical values.	Add
Both expressions are strings.	Connection
One expression is a numeric value, and the other expression is a string.	Add

If one or both expressions are Null expressionsResultIsNull. If both expressions are EmptyResultIsIntegerChild type. However, if an expression isEmpty, Returns another expressionResult.