编程技术是信息技术中最重要的技能和工具之一，它是连接信息和计算机的桥梁。掌握并熟练使用编程语言已成为所有大学生必备的技能。
C语言是高级编程语言的先驱，也是最重要和最流行的语言之一。本书的目标是引导初学者进入程序设计的殿堂，内容涉及编程基础知识包括运算符和表达式、数据输入和输出、选择结构、循环结构、数组、函数、指针、结构体、链表和文件读写等。主要侧重于C语言的基本语法和编程的基本技能。我们将通过大量简洁的程序示例指导您构建编程思维并编写程序。本书旨在帮助学生掌握C语言编程技能，并为其他课程奠定基础，如C++、数学建模、操作系统、计算机图形学、系统仿真等。本书既可以作为大学本科计算机专业和非计算机专业的程序设计基础课程教材，也可以用作大专院校授课教材，亦是一本不可多得的自学教材。

Chapter 1 Introducing C
1.1 Why programming is important
1.2 Why C
1.3 History of C
1.4 Strengths and Weaknesses of C
1.5 How to learn C?
1.5.1 Code::Blocks
1.5.2 XCODE
1.5.3 online compiler
1.5.4 How to sign in to ICOURSE (MOOC) and XUETANG
1.5.5 Can’t find GNU GCC Compiler
1.5.6 I can’t debug
Quiz 1
Chapter 2 Data Types and Expressions
2.1 The General Form of a Simple Program
2.2.1 The General Form
2.2.2 Variables and Assignment
2.2 Character set and Keywords
2.2.1 Character set
2.2.2 Keywords
2.2.3 Identifiers
2.3 Data Types
2.3.1 integer types
2.3.2 floating types
2.3.3 Character types
2.3.4 void type
2.3.5 Variables
2.4 Constants and Variables
2.4.1 Constants
2.5 Operators and Expressions
2.5.1 Arithmetic Operators
2.5.2 Assignment Operators
2.5.3 Increment and Decrement Operators
2.5.4 The sizeof Operator
2.5.5 The Comma Operator
2.5.6 The conditional operator
2.5.7 Bitwise Operators
2.5.8 Expression Statement
2.5.9 Type Conversion
Quiz 2
Chapter 3 Program control structure
3.1 Statement
3.2 Input and output
3.2.1 Single Character Input/output
3.2.2 Formatted Input and Output
3.2 The scanf Function
3.3 The sequence structure
3.4 The selection structure
3.4.1 Relational Expressions
3.4.2 Logical Expressions
3.4.3 The if Statement
3.4.5 The switch Statement
3.5 The loop structure
3.5.1 While loop
3.5.2 do while loop
3.5.3 for loop
3.5.4 Exiting from a Loop
Quiz 3
Chapter 4 The Preprocessor
4.1 Preprocessor Directives
4.2 Macro Definitions
4.3 File Inclusion
Quiz 4
Answer 4
Chapter 5 Arrays
5.1 One-Dimensional Arrays
5.1.1 The declaration of a one-dimensional array
5.1.2 Access array elements
5.1.3 Index
5.1.4 Initialization
5.1.5 Variable-Length Arrays
5.2 Multidimensional Arrays
5.2.1 Declaration of a two-dimensional array
5.2.2 Variable-Length 2D arrays
5.2.3 Initializing a 2D Array
5.2.4 Application of the 2D Array
Quiz 5
Answer
Chapter 6 Functions
6.1 Introduction
6.2 Defining and Calling Functions
6.3 Arguments
6.4 The return Statement
6.5 Declaration
6.6 Array arguments
6.7 Recursion
6.8 Sort algorithm
6.9 Program Organization
6.9.1 Scope
6.9.2 Local variables and Global variables
Quiz 6
Answer
Chapter 7 Pointers
7.1 Pointer Variables
7.2 The Address and Indirection Operators
7.3 Pointers as Arguments
7.4 Pointers as Return Values
7.5 Using Pointers for Array
7.6 Array Arguments
7.9 Pointers and Multidimensional Arrays
7.10 Pointers to Functions
Quiz 7
Answer
Chapter 8 Strings
8.1 String Constants and Variables
8.1.1 String Constants
8.1.2 String Variables
8.2 Reading and Writing Strings
8.2.1 Writing Strings
8.2.2 Reading Strings
8.3 Accessing the Characters in a String
8.4 Using the C String Library
8.4.1 strcpy and strncpy
8.4.2 strlen
8.4.3 strcat and strncat
8.4.4 strcmp
8.5 sprintf and sscanf
8.6 Array of Strings
8.7 Array of Pointers to Strings
Quiz 8
Answer
Chapter 9 Structures, Unions, and Enumerations
9.1 Structure Variables
9.1.1 Structure Variables
9.1.2 Structures as Arguments and Return Values
9.1.3 Arrays of Structures
9.1.4 Pointers to structs
9.2 Unions
9.3 Enumerations
Quiz 9
Answer
Chapter 10 LinkedList
10.1 Introduction
10.3 creating a linked list
10.4 Insert a node
10.5 Search a node
10.6 delete a node
Chapter 11 Files
11.1 Streams
11.2 File Operations
11.2.1 Openin
11.2.2 Closing a File
11.2.3 Remove and Rename Functions
11.2.4 Detecting End