Pseudocode, VB & Python QuickRef

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Description VB.NET Python C# Exam Reference Language (OCR)

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.

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Skill

Description

VB.NET

Python

C#

Greater than or less than

If you need to compare two expressions you will need the greater than or less than operators.

An expression can be a variable or combination of variables & data (e.g. 1 + 1)

An operator is a symbol that means add, subtract or something similar.

This example asks the user to enter a password and displays how strong that password is based purely on the length:

Less than 5 characters: weak

More than or equal to 8 characters: strong

Otherwise: medium

password = input("Please enter a password") if len(password) >= 8: print("strong") else: if len(password) < 5: print("weak") else: print("medium")

Console.WriteLine("Please enter a password"); string password = Console.ReadLine(); if (password.Length >= 8) { Console.WriteLine("strong"); } else { if(password.Length < 5) { Console.WriteLine("weak"); } else { Console.WriteLine("medium"); } }

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