如何從二維數組中檢索字符串

Question

def foo(val) 
{ 
    one: [["one1", "1"]], 
    two: [ 
     ["two1", "1"], 
     ["two2", "2"]], 
}[val] 
end 

我想從「1」中檢索「two1」，我該怎麼做？

注：我想做[：二] [ 「1」]

Answer 1

def foo(v1, v2) 
    hsh = { 
    'one' => [["one1", "1"]], 
    'two' => [ ["two1", "1"], 
     ["two2", "2"] ], 
    } 
    hsh[v1].select{|i| i[0] == (v1 + v2) && v2 == i[1] }.first.first 
end