Ruby tutorial

Ruby Is an open source object-oriented programming server-side scripting language , stay 20 century 90 In the middle of the s, Matsumoto of Japan （まつもとゆきひろ/Yukihiro Matsumoto） Design and develop . stay Ruby Community , Matsumoto is also known as Matsu （Matz）.Ruby Can run on multiple platforms , Such as Windows、MAC OS and UNIX The various versions of .

One 、 ruby grammar

1.  be-all Ruby The file extensions are  .rb

2. ruby notes

     1. Line notes ：   Use characters at the beginning of a line （ # ）

     2. Block annotation ：  Block annotations are hidden from the interpreter =begin   =end Between the lines

Two 、 Compiler related

1. Rakefile Is the use of Ruby The grammatical makefile, Corresponding make The tool is rake. stay Ruby on Rails Inside , Whether it's database initialization , Content initialization , Delete , Or testing , It's all used rake To complete .