VIP会员

目录 版权声明 ........................................................................................................................................ i 译序 ................................................................................................................................................ i 目录 .............................................................................................................................................. iii 第一篇 语言 ................................................................................................................................. 1 第 0 章 序言 ................................................................................................................................. 1 0.1 序言 .................................................................................................................................... 1 0.2 Lua的使用者....................................................................................................................... 2 0.3 Lua的相关资源 ................................................................................................................... 3 0.4 本书的体例 ........................................................................................................................ 3 0.5 关于本书 ............................................................................................................................ 3 0.6 感谢 .................................................................................................................................... 4 第 1 章 起点 ................................................................................................................................. 5 1.1 Chunks................................................................................................................................. 5 1.2 全局变量 ............................................................................................................................ 7 1.3 词法约定 ............................................................................................................................ 7 1.4 命令行方式 ........................................................................................................................ 7 第 2 章 类型和值 ......................................................................................................................... 9 2.1 Nil........................................................................................................................................ 9 2.2 Booleans .............................................................................................................................. 9 2.3 Numbers............................................................................................................................. 10 2.4 Strings................................................................................................................................ 10 2.5 Functions ........................................................................................................................... 12 2.6 Userdata and Threads ........................................................................................................ 12 第 3 章 表达式 ........................................................................................................................... 13 3.1 算术运算符 ...................................................................................................................... 13 3.2 关系运算符 ...................................................................................................................... 13 3.3 逻辑运算符 ...................................................................................................................... 13 3.4 连接运算符 ...................................................................................................................... 14 3.5 优先级 .............................................................................................................................. 15 3.6 表的构造 ........................................................................................................................... 15 第 4 章 基本语法 ....................................................................................................................... 18 4.1 赋值语句 .......................................................................................................................... 18 4.2 局部变量与代码块（block） ......................................................................................... 19 4.3 控制结构语句 .................................................................................................................. 20 Programming in Lua iv Copyright ® 2005, Translation Team, www.luachina.net 4.4 break和return语句............................................................................................................. 23 第 5 章 函数 ............................................................................................................................... 24 5.1 返回多个结果值 .............................................................................................................. 25 5.2 可变参数 ........................................................................................................................... 27 5.3 命名参数 .......................................................................................................................... 28 第 6 章 再论函数 ....................................................................................................................... 30 6.1 闭包 .................................................................................................................................. 32 6.2 非全局函数 ...................................................................................................................... 34 6.3 正确的尾调用（Proper Tail Calls） ............................................................................... 36 第 7 章 迭代器与泛型for........................................................................................................... 40 7.1 迭代器与闭包 .................................................................................................................. 40 7.2 范性for的语义.................................................................................................................. 42 7.3 无状态的迭代器 .............................................................................................................. 43 7.4 多状态的迭代器 .............................................................................................................. 44 7.5 真正的迭代器 .................................................................................................................. 45 第 8 章 编译·运行·调试 ....................................................................................................... 47 8.1 require函数........................................................................................................................ 49 8.2 C Packages......................................................................................................................... 50 8.3 错误 .................................................................................................................................. 51 8.4 异常和错误处理 .............................................................................................................. 52 8.5 错误信息和回跟踪（Tracebacks） ................................................................................ 53 第 9 章 协同程序 ....................................................................................................................... 56 9.1 协同的基础 ...................................................................................................................... 56 9.2 管道和过滤器 .................................................................................................................. 58 9.3 用作迭代器的协同 .......................................................................................................... 61 9.4 非抢占式多线程 .............................................................................................................. 63 第 10 章 完整示例 ..................................................................................................................... 68 10.1 Lua作为数据描述语言使用 ........................................................................................... 68 10.2 马尔可夫链算法 ............................................................................................................ 71 第二篇 tables与objects............................................................................................................... 75 第 11 章 数据结构 ..................................................................................................................... 76 11.1 数组 ................................................................................................................................ 76 11.2 阵和多维数组 ................................................................................................................ 77 11.3 链表 ................................................................................................................................ 78 11.4 队列和双端队列 ............................................................................................................ 78 11.5 集合和包 ........................................................................................................................ 80 11.6 字符串缓冲 .................................................................................................................... 80 第 12 章 数据文件与持久化 ..................................................................................................... 84 12.1 序列化 ............................................................................................................................ 86 Programming in Lua v Copyright ® 2005, Translation Team, www.luachina.net 第 13 章 Metatables and Metamethods ...................................................................................... 92 13.1 算术运算的Metamethods............................................................................................... 92 13.2 关系运算的Metamethods............................................................................................... 95 13.3 库定义的Metamethods................................................................................................... 96 13.4 表相关的Metamethods................................................................................................... 97 第 14 章 环境 ........................................................................................................................... 103 14.1 使用动态名字访问全局变量 ...................................................................................... 103 14.2 声明全局变量 ............................................................................................................... 104 14.3 非全局的环境 .............................................................................................................. 106 第 15 章 Packages .................................................................................................................... 109 15.1 基本方法 ...................................................................................................................... 109 15.2 私有成员（Privacy） ...................................................................................................111 15.3 包与文件 .......................................................................................................................112 15.4 使用全局表 ...................................................................................................................113 15.5 其他一些技巧（Other Facilities）...............................................................................115 第 16 章 面向对象程序设计 ....................................................................................................118 16.1 类 ...................................................................................................................................119 16.2 继承 .............................................................................................................................. 121 16.3 多重继承 ...................................................................................................................... 122 16.4 私有性（privacy） ...................................................................................................... 125 16.5 Single-Method的对象实现方法 ................................................................................... 127 第 17 章 Weak表 ...................................................................................................................... 128 17.1 记忆函数 ...................................................................................................................... 130 17.2 关联对象属性 .............................................................................................................. 131 17.3 重述带有默认值的表 .................................................................................................. 132 第三篇 标准库 ......................................................................................................................... 134 第 18 章 数学库 ....................................................................................................................... 135 第 19 章 Table库 ...................................................................................................................... 136 19.1 数组大小 ....................................................................................................................... 136 19.2 插入/删除 ..................................................................................................................... 137 19.3 排序 .............................................................................................................................. 137 第 20 章 String库 ..................................................................................................................... 140 20.1 模式匹配函数 .............................................................................................................. 141 20.2 模式 .............................................................................................................................. 143 20.3 捕获（Captures） ........................................................................................................ 146 20.4 转换的技巧（Tricks of the Trade）............................................................................ 151 第 21 章 IO库........................................................................................................................... 157 21.1 简单I/O模式................................................................................................................. 157 21.2 完全I/O 模式............................................................................................................... 160 Programming in Lua vi Copyright ® 2005, Translation Team, www.luachina.net 第 22 章 操作系统库 ............................................................................................................... 165 22.1 Date和Time ................................................................................................................... 165 22.2 其它的系统调用 .......................................................................................................... 167 第 23 章 Debug库..................................................................................................................... 169 23.1 自省（Introspective） ................................................................................................. 169 23.2 Hooks............................................................................................................................. 173 23.3 Profiles........................................................................................................................... 174 第四篇 C API ........................................................................................................................... 177 第 24 章 C API纵览 ................................................................................................................. 178 24.1 第一个示例程序 .......................................................................................................... 179 24.2 堆栈 .............................................................................................................................. 181 24.3 C API的错误处理 ......................................................................................................... 186 第 25 章 扩展你的程序 ........................................................................................................... 188 25.1 表操作 .......................................................................................................................... 189 25.2 调用Lua函数 ................................................................................................................ 193 25.3 通用的函数调用 .......................................................................................................... 195 第 26 章 调用C函数................................................................................................................. 198 26.1 C 函数........................................................................................................................... 198 26.2 C 函数库....................................................................................................................... 200 第 27 章 撰写C函数的技巧..................................................................................................... 203 27.1 数组操作 ...................................................................................................................... 203 27.2 字符串处理 .................................................................................................................. 204 27.3 在C函数中保存状态.................................................................................................... 207 第 28 章 User-Defined Types in C ........................................................................................... 212 28.1 Userdata......................................................................................................................... 212 28.2 Metatables...................................................................................................................... 215 28.3 访问面向对象的数据 .................................................................................................. 217 28.4 访问数组 ...................................................................................................................... 219 28.5 Light Userdata ............................................................................................................... 220 第 29 章 资源管理 ................................................................................................................... 222 29.1 目录迭代器 .................................................................................................................. 222 29.2 XML解析 ...................................................................................................................... 225