ruby基本语法(一)_Ruby_编程开发_程序员俱乐部

1.File.open("filename")

2.File.open("filename").readLines

3.array=[...]

4.array1 - array2

5.array.length array.size

6.array[(-)index]

7.array[f..t]

8.array[f...t]

9.array.delete_at(index)

10.array.slice!(f..t)

11.array.empty?

12.a.push(e)

13.a << e | a << [.....]

14.a.pop

15.a.shift

16.a.unshift(e)

17.a.methods

18.ARGV

19."".downcase

20.a.each do |e|

??????? ...

???? end

21.生成新Array

class="ruby">[1,2,3].collect do |e|
  e*10
end

?

[1,2,3].collect { |e| e * 10}

22. "....".split(reg)

23.a.include?(xxx)

24.

[1,2,3,4,5,6,7,8].reject {|e| e != 2}

25.装在文件 load 'xxx.rb'

26.__FILE__和$0是当前.rb文件名

27.a.any?