$ irb 2.6.6 :001 > names = ["tom0", "tom1", "tom2", "tom3", "tom6"] => ["tom0", "tom1", "tom2", "tom3", "tom6"] 2.6.6 :002 > names[-2] => "tom3" 2.6.6 :003 > names[2..5] => ["tom2", "tom3", "tom6"] 2.6.6 :004 > items = [0,1,2,3,4,5,6] => [0, 1, 2, 3, 4, 5, 6] 2.6.6 :005 > items.zip(names) => [[0, "tom0"], [1, "tom1"], [2, "tom2"], [3, "tom3"], [4, "tom6"], [5, nil], [6, nil]] 2.6.6 :006 >-2022-6-29 {455} (#14656333@0) (呄 - 每天乃古); +1