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我有二维数组是这样的:马平二维数组与索引的一个维数组
ary = [
["Source", "attribute1", "attribute2"],
["db", "usage", "value"],
["import", "usage", "value"],
["webservice", "usage", "value"]
]
我要拉出来在哈希如下:
{1 => "db", 2 => "import", 3 => "webservice"} // keys are indexes or outer 2d array
我知道如何得到这个通过循环槽2d阵列。但是,因为我学习Ruby我以为我可以像这样的东西
ary.each_with_index.map {|element, index| {index => element[0]}}.reduce(:merge)
做这给我:
{0=> "Source", 1 => "db", 2 => "import", 3 => "webservice"}
我如何从我的输出图摆脱0元素?