C语言编程入门教程

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"《C Programming Language》英文版,是一本介绍C语言的经典教程。书中涵盖了C语言的基础概念、控制流程、类型与运算符以及函数等内容,适合初学者入门学习。" 在C语言中,这本书首先从简介入手,引导读者逐步熟悉编程环境。第1章是一个教学式的介绍,包括如何开始编写程序、变量与算术表达式、`for`循环、符号常量、字符输入输出等基础内容。其中,字符输入输出部分涉及了文件复制、字符计数、行计数和词计数等实用示例,这些都是实际编程中常见的任务。 数组是C语言中的重要数据结构,第1章讲解了数组的概念和用法,而函数则允许我们将代码组织成可重复使用的模块,这在第1章的后半部分进行了讨论。函数调用时的参数传递机制,即按值传递,也在这一章中详细解释。此外,还介绍了字符数组和外部变量的作用域,这些都是理解和编写C程序的关键。 第2章深入探讨了类型、运算符和表达式。变量命名规则、数据类型及其大小、常量的定义、声明方式、算术运算符、关系和逻辑运算符、类型转换、自增自减运算符、位运算符、赋值运算符和条件表达式等知识点依次展开。理解这些内容对于编写正确且高效的C程序至关重要。 第3章讲述了控制流程,这是程序执行的路径和顺序。包括基本的语句和块、`if-else`选择结构、多层`else-if`、`switch`语句,以及各种类型的循环(`while`、`for`和`do-while`)。`break`和`continue`用于控制循环流程,`goto`和标签则是更复杂的跳转工具,尽管在某些情况下可以使用,但通常建议避免滥用。 第4章则进一步阐述了函数和程序结构,包括函数的定义、调用、返回值,以及更复杂的程序设计技巧,如作用域规则和模块化编程。这部分内容对提高代码的复用性和可维护性具有重要意义。 通过本书的学习,读者将掌握C语言的基本语法和编程实践,为更高级的系统级编程和软件开发打下坚实基础。
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The C programming Language By Brian W. Kernighan and Dennis M. Ritchie. Published by Prentice-Hall in 1988 ISBN 0-13-110362-8 (paperback) ISBN 0-13-110370-9 目录结构: Contents Preface Preface to the first edition Introduction Chapter 1: A Tutorial Introduction Getting Started Variables and Arithmetic Expressions The for statement Symbolic Constants Character Input and Output File Copying Character Counting Line Counting Word Counting Arrays Functions Arguments - Call by Value Character Arrays External Variables and Scope Chapter 2: Types, Operators and Expressions Variable Names Data Types and Sizes Constants Declarations Arithmetic Operators Relational and Logical Operators Type Conversions Increment and Decrement Operators Bitwise Operators Assignment Operators and Expressions Conditional Expressions Precedence and Order of Evaluation Chapter 3: Control Flow Statements and Blocks If-Else Else-If Switch Loops - While and For Loops - Do-While Break and Continue Goto and labels Chapter 4: Functions and Program Structure Basics of Functions Functions Returning Non-integers External Variables Scope Rules Header Files Static Variables Register Variables Block Structure Initialization Recursion The C Preprocessor File Inclusion Macro Substitution Conditional Inclusion Chapter 5: Pointers and Arrays Pointers and Addresses Pointers and Function Arguments Pointers and Arrays Address Arithmetic Character Pointers and Functions Pointer Arrays; Pointers to Pointers Multi-dimensional Arrays Initialization of Pointer Arrays Pointers vs. Multi-dimensional Arrays Command-line Arguments Pointers to Functions Complicated Declarations Chapter 6: Structures Basics of Structures Structures and Functions Arrays of Structures Pointers to Structures Self-referential Structures Table Lookup Typedef Unions Bit-fields Chapter 7: Input and Output Standard Input and Output Formatted Output - printf Variable-length Argument Lists Formatted Input - Scanf File Access Error Handling - Stderr and Exit Line Input and Output Miscellaneous Functions String Operations Character Class Testing and Conversion Ungetc Command Execution Storage Management Mathematical Functions Random Number generation Chapter 8: The UNIX System Interface File Descriptors Low Level I/O - Read and Write Open, Creat, Close, Unlink Random Access - Lseek Example - An implementation of Fopen and Getc Example - Listing Directories Example - A Storage Allocator Appendix A: Reference Manual Introduction Lexical Conventions Syntax Notation Meaning of Identifiers Objects and Lvalues Conversions Expressions Declarations Statements External Declarations Scope and Linkage Preprocessor Grammar Appendix B: Standard Library Input and Output: <stdio.h> File Operations Formatted Output Formatted Input Character Input and Output Functions Direct Input and Output Functions File Positioning Functions Error Functions Character Class Tests: <ctype.h> String Functions: <string.h> Mathematical Functions: <math.h> Utility Functions: <stdlib.h> Diagnostics: <assert.h> Variable Argument Lists: <stdarg.h> Non-local Jumps: <setjmp.h> Signals: <signal.h> Date and Time Functions: <time.h> Implementation-defined Limits: <limits.h> and <float.h> Appendix C: Summary of Changes