《Jumping into C++》：初学者指南

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"《Jumping into C++》是一本专为C++初学者设计的最佳入门指南。本书旨在通过简洁易懂的方式引导读者步入C++的世界，让编程新手快速上手。全书分为两个主要部分，涵盖了基础概念、环境设置以及实践操作。 Part1：章节一——"Jumping into C++" 开始于第11页，首先介绍了编程语言的基础概念，解释了什么是编程语言，并区分了C与C++的不同。作者指出学习C++不一定需要先了解C，但了解基本的计算机概念是有帮助的。章节还讨论了程序员所需的数学知识，强调虽然数学在某些高级主题中重要，但初学者并不需要掌握大量复杂的数学理论。接着，作者解释了编程中的关键术语，如可执行文件、编辑和编译源代码，以及处理代码样例的重要性。对于不同操作系统（Windows、Macintosh、Linux）的用户，书中详细介绍了如何安装和配置开发环境，包括使用Code::Blocks（Windows）、XCode（Mac）和g++（Linux）。每一步都有详细的步骤指导，如下载、安装过程、运行IDE以及解决常见问题。在Chapter 2——"The Basics of C++" 中，读者将学习C++语言的基本原理。这部分从最简单的C++程序入手，帮助读者理解语法结构。同时，作者会解释如果初次运行程序没有看到预期结果时可能遇到的问题，引导读者逐步调试和解决问题。总体而言，《Jumping into C++》是一本实用的教程，它不仅提供了必要的理论背景，还通过实际操作步骤确保读者能够在实践中掌握C++，无论你是零基础还是希望提升技能的开发者，都能从中受益匪浅。"

Terminology

Throughout the book, I’ll be defining new terms, but let’s get started with some very basic concepts that

you’ll need to get started.

Programming

Programming is the act of writing instructions in a way that allows a computer to understand and

execute those instructions. The instructions themselves are called source code. That's what you'll be

writing. We'll see some source code for the very first time in a few pages.

Executable

The end result of programming is that you have an executable file. An executable is a file that your

computer can run—if you’re on Windows, you’ll know these files as EXEs. A computer program like

Microsoft Word is an executable. Some programs have additional files (graphics files, music files, etc.)

but every program requires an executable file. To make an executable, you need a compiler, which is a

program that turns source code into an executable. Without a compiler, you won’t be able to do

anything except look at your source code. Since that gets boring quickly, the very next thing we will do is

set you up with a compiler.

Editing and compiling source files

The rest of this chapter is devoted to getting you set up with a simple, easy-to-use development

environment. I'll get you set up with two specific tools, a compiler and an editor. You've already learned

why you need a compiler—to make the program do stuff. The editor is less obvious, but equally

important: an editor makes it possible for you to create source code in the right format.

Source code must be written in a plain text format. Plain text files contain nothing but the text of the

file; there is no additional information about how to format or display the content. In contrast, a file you

produce using Microsoft Word (or similar products) is not a plain text file because it contains

information about the fonts used, the size of the text, and how you’ve formatted the text. You don’t see

this information when you open the file in Word, but it’s all there. Plain text files have just the raw text,

and you can create them using the tools we're about to discuss.

The editor will also give you two other nice features, syntax highlighting and auto-indentation. Syntax

highlighting just means it adds color coding so that you can easily tell apart different elements of a

program. Auto-indentation means that it will help you format your code in a readable way.

If you're using Windows or a Mac, I'll get you set you up with a sophisticated editor, known as an

integrated development environment (IDE) that combines an editor with a compiler. If you're using

Linux, we'll use an easy-to-use editor known as nano. I'll explain everything you need in order to get set

up and working!

A note about sample source code

This book includes extensive sample source code, all of which is made available for you to use, without

restriction but also without warranty, for your own programs. The sample code is included in

sample_code.zip, which came with this book. All sample source code files are stored in a separate

folder named after the chapter in which that source file appears (e.g. files from this chapter appear in

the folder ch1). Each source code listing in this book that has an associated file has the name (but not

the chapter) of the file as a caption.

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