GCSE WJEC Computer Science: Programming Fundamentals | GCSE WJEC 计算机：编程基础 考点精讲

📚 GCSE WJEC Computer Science: Programming Fundamentals | GCSE WJEC 计算机：编程基础 考点精讲

Mastering programming fundamentals is essential for success in the WJEC GCSE Computer Science exam. This guide covers every topic you need, from data types to testing, with clear pseudocode examples and explanations. Whether you are new to coding or revising for your final assessment, these bite-sized sections will build your confidence and help you write correct, efficient algorithms.

掌握编程基础对于在 WJEC GCSE 计算机科学考试中取得好成绩至关重要。本指南涵盖你需要掌握的所有主题，从数据类型到测试，配有清晰的伪代码示例和解释。无论你是编程新手还是为最终评估复习，这些简明的章节都能建立你的自信，帮助你写出正确、高效的算法。

1. Variables and Constants | 变量与常量

A variable is a named storage location whose value can change while the program runs. Constants store fixed values that cannot be altered. In WJEC-style pseudocode, variables are assigned using a left arrow (←), like score ← 0. Constants are declared with the keyword CONST, e.g. CONST PI = 3.14. Descriptive names help readability; they must not contain spaces or start with a digit.

变量是程序运行期间值可以改变的有名称的存储位置。常量存储不可更改的固定值。在 WJEC 风格的伪代码中，变量使用左箭头（←）赋值，例如 score ← 0。常量使用关键字 CONST 声明，例如 CONST PI = 3.14。描述性的名称有助于可读性；它们不能包含空格或不能以数字开头。

score ← 0

CONST MAX_MARKS = 100

2. Data Types | 数据类型

Common data types are integer (whole numbers), real/float (decimal numbers), Boolean (True/False), character (single symbol) and string (text). WJEC pseudocode does not force you to declare types explicitly, but you must choose the correct type for operations. For example, storing a person’s age requires an integer; a name requires a string.

常见的数据类型有整数（integer，整型）、实数（real/float，浮点数）、布尔值（Boolean，True/False）、字符（character，单个符号）和字符串（string，文本）。WJEC 伪代码不强制显式声明类型，但在操作时必须选择正确的类型。例如，存储一个人的年龄需要整数类型，存储姓名则需要字符串。

age ← 16

name ← “Priya”

3. Input and Output | 输入与输出

Programs interact with users via INPUT and OUTPUT. OUTPUT displays a message or value; INPUT pauses and waits for the user to enter data, which is then stored in a variable. In WJEC pseudocode: OUTPUT “What is your name?” ; name ← INPUT ;

Published by TutorHao | GCSE Computer Science Revision Series | aleveler.com

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