VBScript Tutorials - Herong's Tutorial Examples
∟Expression and Order of Operation Precedence
∟Examples of Expressions
This section provides a tutorial example showing you different types of expressions.
Now let me try to show you some expressions in an example script, expression.html:
<html> <body> <!-- expression.html - Copyright (c) 2015, HerongYang.com, All Rights Reserved. --> <pre> <script language="vbscript"> ' Expressions with a single data literal document.writeln("") document.writeln(777) document.writeln(0.00314159e30) document.writeln(TRUE) ' Expressions with a single operation document.writeln("") document.writeln(3.333e200 + 0.111e200) document.writeln(11.0 * 1.0e20) document.writeln(1 = 1) document.writeln(9.9999e-1 < 1) document.writeln(True Or False) ' Expressions with multiple operations document.writeln("") document.writeln(+ 1 - 2 * 3 / 4) document.writeln(+ 1 - 2 * 3 / 4 = ( + 1 - 2 ) * 3 / 4) document.writeln(1 - 2 * 3 / 4 = (1 - 2) * 3 / 4 And 0.9999 < 1) </script> </pre> </body> </html>
Here is the output of this VBScript example:
777 3.14159E+27 True 3.444E+200 1.1E+21 True True True -0.5 False False
All results look correct to me.
Table of Contents
About This Book
Introduction of VBScript - Visual Basic Scripting Edition
Variant Data Type, Subtypes, and Literals
Arithmetic Operations
Numeric Comparison Operations and Logical Operations
String Operations - Concatenation and Comparison
Variable Declaration and Assignment Statement
►Expression and Order of Operation Precedence
What Is an Expression?
Precedences of Operations
►Examples of Expressions
Statement Syntax and Statement Types
Array Data Type and Related Statements
Array References and Array Assignment Statements
Conditional Statements - "If ... Then" and "Select Case"
Loop Statements - "For", "While", and "Do"
"Function" and "Sub" Procedures
Built-in Functions
Inspecting Variables Received in Procedures
Error Handling Flag and the "Err" Object
Regular Expression Pattern Match and Replacement
scrrun.dll - Scripting Runtime DLL Library
Creating Your Own Classes
IE Web Browser Supporting VBScript
IIS ASP Server Supporting VBScript
WSH (Windows Script Host)
References
Printable Copy - PDF Version