The function of comparison operator in VBS

This article focuses on "the role of comparison operators in VBS". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the role of comparison operators in VBS.

Used to compare expressions.

Result = expression1 comparisonoperator expression2

Result = object1 Is object2

Parameter result

Any number.

Expression

Any expression.

Comparisonoperator

Any comparison operator.

Object

Any object name.

Description

The Is operator has a special comparison function, which is different from the operators in the following table. The following table contains a list of comparison operators and conditions for determining whether result is True, False, or Null.

Operator describes True if false if Null if = expression2expression1 or expression2 = Null greater than expression1 > expression2expression1 = greater than or equal to expression1 > = expression2expression1 < expression2expression1 or expression2 = Null= equals expression1 = expression2expression1 expression2expression1 or expression2 = Null not equal to expression1 expression2expression1 = expression2expression1 or expression2 = Null

When comparing two expressions, it may not be easy to determine whether the compared expression is as a numeric value or as a string.

The following table describes how expressions are compared and the results of the comparison, depending on the subtype of the comparison.

If both expressions are numeric, a numeric comparison is performed. Both expressions are strings that perform a string comparison. An expression is a numeric value, plus an expression is a string numeric expression is less than a string expression. One expression is Empty and the other performs a numeric comparison for numeric values, with 0 as the value of the Empty expression. One expression is Empty and the other performs string comparisons for strings, with zero-length strings ("") as the value of the Empty expression. If both expressions are Empty, the two expressions are equal. At this point, I believe you have a deeper understanding of "the role of comparison operators in VBS". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!