1.9.3p125 :004 > ary = []
=> []
1.9.3p125 :005 > 100.times{ |i| ary << i+1 }
=> 100
1.9.3p125 :006 > result = Array.new
=> []
1.9.3p125 :007 > 10.times{ |i| result << ary[(10*i)..(10*i+9)] }
=> 10
1.9.3p125 :008 > result
=> [[1, 2, 3, 4, 5, 6, 7, 8, 9, 10], [11, 12, 13, 14, 15, 16, 17, 18, 19, 20], [21, 22, 23, 24, 25, 26, 27, 28, 29, 30], [31, 32, 33, 34, 35, 36, 37, 38, 39, 40], [41, 42, 43, 44, 45, 46, 47, 48, 49, 50], [51, 52, 53, 54, 55, 56, 57, 58, 59, 60], [61, 62, 63, 64, 65, 66, 67, 68, 69, 70], [71, 72, 73, 74, 75, 76, 77, 78, 79, 80], [81, 82, 83, 84, 85, 86, 87, 88, 89, 90], [91, 92, 93, 94, 95, 96, 97, 98, 99, 100]]
看 ruby 的 api 文档吧:
array = (1..100).to_a
10.times do |i|
result << array[i * 10, 10]
end