Categories: All Variables and Constants  String manipulation  Builtin functions  Input and output  Arrays  Conditional logic  Repetition / Iteration  Functions / Procedures 

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This resource is designed as a quick reference or revision guide. It has not been endorsed by any exam boards. If you spot any mistakes, please let me know and I'll fix them asap.

Introduction

This website aims to give a quick reference for VB.NET, Python and C# and pseudocode and is aimed primarily at teachers & students working towards a GCSE or A Level in Computer Science

VB.NET, Python and C# are programming languages designed to be understood and followed by computers. Pseudocode is not a programming language: it's written to be understood by humans so that they can turn it into any programming language.

Top Tips:

  • Explore the different categories of skills at the top of this page
    Each skill has example code in Python, C#. You can also enable VB.NET and Pseudocode for OCR GCSE if you'd find that useful.
  • Search for a specific skill
    If you know what you're looking for, use the search bar above the categories list.
Skill
Description
VB.NET
Python
C#
Comments
  

Comments don't affect how the code runs. They're there to explain the code so that the programmer (or someone else) can understand what the code does. 

Well written comments describe what a line or section of code does. They make your code easier to maintain / extend / improve / debug in the future.

 

# Comments start with a hash
// Single line comments have double forwardslash /* Multi line comments Are useful for longer descriptions /*

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