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Ruby Scripting - Array

2014-02-20 17:35 183 查看
A literal array is created by putting square
brackets around a comma-separated list of elements

eg:

# ["zero" , "un" , "dos" , "tre" ]
a = ['zero' , 'un' , 'dos' , 'tre' ]

# 4
a.length

# 4
a.size

# "zero"
a[0]

# ["un" , "dos" , "tre" ]
a[1..3]
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