笔记 : 《C和指针 》 (Pointers on C)

本文介绍了一种在C语言中处理输入的有效方法,利用getchar()函数读取字符直到遇到换行符或文件结束。这种方法可以有效避免因缓冲区多余字符而引起的后续问题。

第一章

 

1,用下面的句子,接受缓冲区多余的字符,以防对以后产生干扰,其中ch需要声明为int型,因为EOF为整型-1.且getchar的返回类型定义为int。这是需要注意的一点;

  

 

Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Contents A Quick Start ........................................................................................................ 1 Basic Concepts ...................................................................................................... 7 Data ....................................................................................................................... 11 Statements ............................................................................................................. 15 Operators and Expressions .................................................................................... 23 Pointers .................................................................................................................. 29 Functions ............................................................................................................... 37 Arrays .................................................................................................................... 43 Strings, Characters, and Bytes .............................................................................. 55 Structures and Unions ........................................................................................... 69 Dynamic Memory Allocation ................................................................................ 75 Using Structures and Pointers ............................................................................... 79 Advanced Pointer Topics ...................................................................................... 87 The Preprocessor ................................................................................................... 93 Input/Output Functions .......................................................................................... 95 Standard Library .................................................................................................... 119 Classic Abstract Data Types ................................................................................. 129 Runtime Environment ........................................................................................... 145
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