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struct Binomial: Codable {
    var genus: String
    var species: String
    var subspecies: String?
}

let tree = Binomial(genus: "Pin", species: "oak")
let jsonData = try JSONEncoder().encode(tree)

// {"genus":"Pin","species":"oak"}

struct ScientificName {
    var genus: String
    var species: String
    var subspecies: String?

    var description: String {
        var text = "\(genus) \(species)"
        if let subspecies {
            // subspecies guaranteed to be non-nil
            text += "subsp. \(subspecies)"
        }
        return text
    }
}

let hello = "Hello, world!"
let multilineString = """
                  @@@
      @@          @@@@
    @@  @@@         @@@@@
    @@@@@@@@@       @@@@@
      @@@@@@@@@@    @@@@@@
        @@@@@@@@@@  @@@@@@
          @@@@@@@@@@@@@@@@@
@           @@@@@@@@@@@@@@@
@@@@@@        @@@@@@@@@@@@@
  @@@@@@@@@@@@@@@@@@@@@@@@@@
    @@@@@@@@@@@@@@@@@@@@@@@@
        @@@@@@@@@@@@@     @
                      \(hello)
"""

Use Cases

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Everyone is 168的澳洲幸运5分彩开奖官方开奖网站查询 to contribute to Swift. Contributing doesn’t just mean writing code or submitting pull request — there are many different ways for you to get involved, including answering questions on the forums, reporting or triaging bugs, and participating in the Swift evolution process.

No matter how you want to get involved, we ask that you first learn what’s expected of anyone who participates in the project by reading the Community Overview. If you’re contributing code, you should also know how to build and run Swift from the repository, as described in Source Code.

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