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Jingdong book

21天学通C语言(第7版)

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Books Computers & Internet Programming Language and Programming

Jingdong book

21天学通C语言(第7版)

Name: 21天学通C语言(第7版)
Brand: Jingdong book
SKU: 3118022801
Price: 36.15 USD
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畅销全球20余年
中文版累计销量过50000册
C语言初学者的轻量级教程
针对C11标准和C标准库全面更新
提供本书所有源代码下载

Content Description

《21天学通C语言（第7版）》是初学者学习C语言的经典教程。本版按新的C11标准（ISO/IEC9899：2011），以循序渐进的方式介绍了C语言编程方面的知识，并提供了丰富的实例和大量的练习。通过学习实例，并将所学的知识用于完成练习，读者将逐步了解、熟悉并精通C语言。
《21天学通C语言（第7版）》总共分为4部分，第1部分是C语言基础，介绍了C语言的组成、变量、常量、语句、表达式、运算符、函数和循环、信息读写；第2部分介绍了数组、指针、字符和字符串、结构、联合、TypeDef、变量作用域、高级程序控制、输入/输出等；第3部分介绍了指针、磁盘文件、字符串操纵、函数库、内存管理以及编译器的高级用法等；第4部分是附录，介绍了ASCII表、C/C++中的关键字、常用函数，以及习题答案等内容。
《21天学通C语言（第7版）》针对初中级程序员编写，可作为学习C语言的教程或参考资料。

Author Description

Bradley L. Jones，Developer.com网站的管理者，负责管理Developer.com、CodeGuru和DevX等网站，有使用C、C#、C++、SQL Sever、PowerBuilder、Visual Basic、HTML5等开发系统的经验。他的推特是@BradleyLJones。

Peter Aitken，杜克大学医学中心的职员，把编程技术应用到牙齿计算机开发程序研究中。他是IT领域应用与编程方面作家，在计算机杂志上发表文章70多篇，编写图书40多本。Aitken目前是制药工程方面的顾问。

Dean Miller，在出版和授权消费产品业务方面有20多年经验的作者兼编辑。期间，他策划并推出了大量畅销书籍和系列，包括Teach Yourself in 21 Days、Teach Yourself in 24 Hours以及Unleashed系列，这些都由Sam出版社出版。

Comments

★“这是一本真正适合C语言程序设计初学者和没有任何编程经验的人的图书”。
——独立评论人

★我认为这是C语言初学者的不二选择！作者讲述的方式通俗易懂，而且让读者思路清晰，快速掌握知识点并能应用，不会出现眼高手低的情况；就算对于指针这样的难点都剖析得很透彻，很难得的一本书！强烈建议初学者从这本书看起，这样子会事半功倍！
——读者“duckgaga”

★本书非常详细地介绍了C语言的基本知识及语法结构，是一本非常适合初学者的C语言教材。
——读者“河是平凡的”

★这本书太适合初学者了，内容全面，练习也很多，翻译的也不错，我就是看这本书之后，对C的理解才感觉清晰了很多！一句话来讲，本书易于理解！
——读者“ljnk”

★知识点全面，内容深入浅出，讲解比较易懂。
——读者“翠平九龙”

★感觉特别好，讲得很透彻，难得的好书。
——读者“fatbamboo”

Catalogue

第1部分 C语言基础
第1课初识C语言
1.1 C语言发展简史
1.2 为何要使用C语言
1.3 准备编程
1.4 程序开发周期
1.4.1 创建源代码
1.4.2 使用编辑器
1.4.3 编译源代码
1.4.4 链接以创建可执行文件
1.4.5 完成开发周期
1.5 第1个C程序
1.5.1 输入并编译hello.c
1.5.2 编译错误
1.5.3 链接器错误消息
1.6 小结
1.7 答疑
1.8 课后研习
1.8.1 小测验
1.8.2 练习题
第2课 C程序的组成部分
2.1 简短的C程序
2.2 程序的组成部分
2.2.1 main（）函数
2.2.2 #include和#define指令
2.2.3 变量定义
2.2.4 函数原型
2.2.5 程序语句
2.2.6 函数定义
2.2.7 程序的注释
2.2.8 使用花括号
2.2.9 运行程序
2.2.10 补充说明
2.3 学以致用
2.4 小结
2.5 答疑
2.6 课后研习
2.6.1 小测验
2.6.2 练习题
第3课储存信息：变量和常量
3.1 计算机的内存
3.2 用变量储存信息
3.3 数值类型
3.3.1 变量声明
3.3.2 typedef关键字
3.3.3 初始化变量
3.4 常量
3.4.1 字面常量
3.4.2 符号常量
3.5 小结
3.6 答疑
3.7 课后研习
3.7.1 小测验
3.7.2 练习题
第4课语句、表达式和运算符
4.1 语句
4.1.1 在语句中留白
4.1.2 创建空语句
4.1.3 复合语句
4.2 理解表达式
4.2.1 简单表达式
4.2.2 复杂表达式
4.3 运算符
4.3.1 赋值运算符
4.3.2 数学运算符
4.3.3 运算符优先级和圆括号
4.3.4 子表达式的计算顺序
4.3.5 关系运算符
4.4 if语句
……
第5课函数
第6课基本程序控制
第7课信息读写基础

第2部分 C语言应用
第8课数值数组
第9课指针
第10课字符和字符串
第11课结构、联合和typedef
第12课变量作用域
第13课高级程序控制
第14课输入和输出

第3部分 C语言进阶
第15课指向指针的指针和指针数组
第16课指向函数的指针和链表
第17课磁盘文件
第18课操纵字符串
第19课函数的高级主题
第20课 C语言的函数库
第21课管理内存
第22课编译器的高级用法
第4部分附录

Book Abstract

《21天学通C语言（第7版）》：
问：既然外部变量在程序中的任何地方都可用，为何不将所有的变量都声明为外部变量？
答：随着程序越来越大，包含的变量也越来越多。外部变量在程序运行期间会一直占用内存，而自动变量只在执行它所在的函数时才占用内存。因此，使用局部变量节约内存空间。然而，更重要地是，使用局部变量能减少程序不同部分不必要的交互，从而减少了程序的bug，同时也遵循了结构化编程的原则。
问：第11课中提到，作用域影响结构实例，但不会影响结构标签。这是为什么？
答：当声明不带实例的结构时，创建的是一个模板，即只定义了一个结构类型，此时并未声明任何变量。直到声明了结构的实例，该实例（即结构变量）才会占用内存和具有作用域。因此，可以在函数外部声明结构标签，不会占用任何内存。许多程序员通常都将结构标签声明在头文件中，然后在需要创建结构实例的文件中包含相关的头文件即可。第22课将介绍头文件的相关内容。
问：计算机如何区分同名的外部变量和局部变量？
答：这个问题超出了《21天学通C语言（第7版）》讨论的范围。你需要知道的是，如果声明了与外部变量同名的局部变量，在局部变量的作用域内时（定义局部变量的函数内），程序会暂时忽略外部变量，直至离开局部变量的作用域。
问：是否可以声明类型不同的同名外部变量和局部变量？
……

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