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  • Extracting values from a list of (key, value) pairs 日期:2014-03-07 20:58:22 点击:88 好评:0

    If you need ordered key, value pairs, you can either use something like Tie::IxHash or a simple array of key, value pairs. I found myself in the situation where I needed to extract just the keys from such an array. There are a number of wa...

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