共用方式為


Subtraction Operator (-) (VBScript)

 

Finds the difference between two numbers or indicates the negative value of a numeric expression.

Syntax

' Example 1
result = number1-number2
' Example 2
-number

Arguments

  • result
    Any numeric variable.

  • number
    Any numeric expression.

  • number1
    Any numeric expression.

  • number2
    Any numeric expression.

Remarks

In Syntax 1, the - operator is the arithmetic subtraction operator used to find the difference between two numbers. In Syntax 2, the - operator is used as the unary negation operator to indicate the negative value of an expression.

If one or both expressions are Null expressions, result is Null. If an expression is Empty, it is treated as if it were 0.

Requirements

Version 1

See Also

Addition Operator (+) (VBScript)
Arithmetic Operators
Operator Precedence (VBScript)
Operator Summary (VBScript)