2 hash:
2散列:
h1 = { "s1" => "2009-7-27", "s2" => "2010-3-6", "s3" => "2009-7-27" }
h2 = { "s1" => "12:29:15", "s2" => "10:00:17", "s3" => "12:25:52" }
h1 = { "s1" => "2009-7-27", "s
阅读背景：
Ruby:将两个散列合并为一个，并与值连接。
来源：互联网
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