|
大小: 493
备注:
|
← 于2008-02-23 15:35:50修订的的版本7 ⇥
大小: 1022
备注: converted to 1.6 markup
|
| 删除的内容标记成这样。 | 加入的内容标记成这样。 |
| 行号 1: | 行号 1: |
| [[Navigation(slides)]] == 4.11 The C Preprocessor == |
## page was renamed from Functions and Program Structure/4.11 The C Preprocessor <<Navigation(slides)>> == 4.11 The C Preprocessor C预处理器 == |
| 行号 6: | 行号 7: |
| [[Navigation(siblings)]] | C语言通过预处理器提供了一些语言功能。从概念上讲，预处理器是编译过程中单独执行的第一个步骤。两个最常用的预处理器指令是：#include指令(用于在编译期间把指定文件的内容包含进当前文件中)和#define指令(用任意字符序列替代一个标记)。本节还将介绍预处理器的其他一些特性，如条件编译与带参数的宏。 <<Include(^TCPL/4\.11\..*,,titlesonly)>> |
<<Navigation: 执行失败 ['AllContext' object has no attribute 'values'] (see also the log)>>
4.11 The C Preprocessor C预处理器
C provides certain language facilities by means of a preprocessor, which is conceptionally a separate first step in compilation. The two most frequently used features are #include, to include the contents of a file during compilation, and #define, to replace a token by an arbitrary sequence of characters. Other features described in this section include conditional compilation and macros with arguments.
C语言通过预处理器提供了一些语言功能。从概念上讲，预处理器是编译过程中单独执行的第一个步骤。两个最常用的预处理器指令是：#include指令(用于在编译期间把指定文件的内容包含进当前文件中)和#define指令(用任意字符序列替代一个标记)。本节还将介绍预处理器的其他一些特性，如条件编译与带参数的宏。