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ruby - 求教多重 hash 如何取值

Annie千寻_535 发布于 2022-10-26 13:00

求教如何在如下数据中取PublicPort或Image

[#"/bin/bash", "Created"=>1427722904, "Image"=>"ddddd:latest", "Names"=>["/clever_pike"], "Ports"=>[{"IP"=>"0.0.0.0", "PrivatePort"=>80, "PublicPort"=>10280, "Type"=>"tcp"}], "Status"=>"Up 10 days", "id"=>"8aba2f87cdf5e5d340f30fef8e5df8f58d990eab1c70583d4fef3a8fa83de3f2"}, @connection=#"/var/run/docker.sock"}>>, #"/bin/bash", "Created"=>1427722902, "Image"=>"bbbbbbb:latest", "Names"=>["/serene_heisenberg"], "Ports"=>[{"IP"=>"0.0.0.0", "PrivatePort"=>80, "PublicPort"=>10180, "Type"=>"tcp"}], "Status"=>"Up 10 days", "id"=>"c95642d254f1b716debbc8f5381b1234aff69c92db87a43e9b6f64216d1471b3"}, @connection=#"/var/run/docker.sock"}>>]

以上直接调用docker-api，d=Docker::Container.all获得，相应源代码如下。

rubydef self.all(opts = {}, conn = Docker.connection)
    hashes = Docker::Util.parse_json(conn.get('/containers/json', opts)) || []
    hashes.map { |hash| new(conn, hash) }
end

1 个回答

不是很明白你想说什么，不过hash的取值很简单：

for example
```
a = {}
b = {}
b["name"] = "bla"
b["age"] = "12"
a{"buddy"} = b

a["buddy"]["name"] # => "bla"
```
2022-10-27 01:07 回答

他们叫我红豆

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