开源文档：Ruby 语言入门教程 v1.0
第 1 页
目录
自序 ..................................................................................................................................................3
第一章 概述...................................................................................................................................4
1.1 编程语言的发展简史......................................................................................................4
1.2 编程其实很容易..............................................................................................................7
1.3 Ruby的由来.....................................................................................................................8
1.4 Ruby的特性.....................................................................................................................9
第二章 ............................................................................................................................................11
2.1 下载Ruby 1.8.5 ..............................................................................................................11
2.2 安装Ruby 1.8.5 for Windows ........................................................................................12
2.3 开始第一个小程序........................................................................................................14
2.4 Ruby语言的集成开发环境 ...........................................................................................17
第三章 语法快览.........................................................................................................................18
3.1 注释与分行....................................................................................................................18
3.2 分隔符............................................................................................................................20
3.3 关键字............................................................................................................................21
3.4 运算符............................................................................................................................23
3.5 标识名和变量的作用域................................................................................................25
3.6 类库................................................................................................................................26
3.7 数据类型........................................................................................................................27
3.8 赋值和条件运算符........................................................................................................28
3.9 条件判断语句................................................................................................................30
一. 单行 if（如果） 语句 ...........................................................................................30
二. 多行 if 语句 ...........................................................................................................30
三. unless(除非) 条件语句： ........................................................................................30
四. case分支条件语句....................................................................................................31
3.10 循环语句......................................................................................................................32
一. while（当…） 循环................................................................................................32
二. 单行 while 循环.....................................................................................................32
三. until（直到…） 循环 ...........................................................................................32
四. for…in 循环.............................................................................................................33
五．break ， next & redo & retry....................................................................33
六. 求 50 以内的素数。................................................................................................36
七. times , upto , downto , each ,step ..............................................................................37
3.11 异常与线程..................................................................................................................38
3.12 一个综合小练习..........................................................................................................39
第四章 一切都是对象.................................................................................................................40
4.1 两种思维方式................................................................................................................40
4.2 对象................................................................................................................................41
4.3 封装................................................................................................................................43
