《C程序设计语言》的第2版描述的是ANSI标准定义的C语言。最明显的改变是新形式的函数声明和定义。现代编译器已能支持此标准的大部分特性。我们尽力保持本书第1版的简洁性。C不是一个大型语言，也不需要一本很厚的书来描述。我们改进了对典型特性的阐述，如指针，它是C程序设计的中心。例如，我们用程序来处理复杂的声明，这些程序将声明转换为单词或反之。像以前一样，所有例子的文本都以机器可读的形式直接经过测试。-" C Programming Language"　2nd Edition describes the ANSI standard definition of the C language. The most obvious change is the new form of function declaration and definition. Modern compilers are able to support most features of this standard. We try to keep the book version 1 of simplicity. C is not a large language, do not need a very thick book to describe. We have improved the exposition of the typical characteristics, such as pointers, it is the center of C programming. For example, we use the program to handle complex statements, these statements into a word program or vice versa. As before, all examples are machine-readable text directly in the form tested.