Programming in Luav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 Copyright ® 2005, Translation Team,