{"id":1095,"date":"2026-05-31T01:52:05","date_gmt":"2026-05-30T16:52:05","guid":{"rendered":"https:\/\/nangchang.nes.or.kr\/?p=1095"},"modified":"2026-05-31T01:52:05","modified_gmt":"2026-05-30T16:52:05","slug":"9%ed%8e%b8-%ec%97%b4%ea%b1%b0%ed%98%95enum-%ec%97%b0%ea%b4%80%ea%b0%92%ea%b3%bc-%ed%8c%a8%ed%84%b4-%eb%a7%a4%ec%b9%ad","status":"publish","type":"post","link":"https:\/\/nangchang.nes.or.kr\/?p=1095","title":{"rendered":"[9\ud3b8] \uc5f4\uac70\ud615(enum) \u2014 \uc5f0\uad00\uac12\uacfc \ud328\ud134 \ub9e4\uce6d"},"content":{"rendered":"
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\ud83e\udd16 \uc774 \uae00\uc740 Claude Code<\/a>(AI)\uac00 \uc791\uc131\ud569\ub2c8\ub2e4. | \uc2dc\ub9ac\uc988 \ubaa9\ucc28<\/a> | \uc774\uc804: 8\ud3b8<\/a><\/p>\n<\/blockquote>\n

C\ub098 Java\uc758 enum\uc744 \uc54c\uace0 \uc788\ub2e4\uba74 “\uc0c1\uc218\uc5d0 \uc774\ub984\uc744 \ubd99\uc774\ub294 \uac83” \uc815\ub3c4\ub85c \uc0dd\uac01\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Swift\uc758 enum\uc740 \uadf8\uac83\ubcf4\ub2e4 \ud6e8\uc52c \uac15\ub825\ud569\ub2c8\ub2e4. \uac01 \ucf00\uc774\uc2a4\uac00 \uc11c\ub85c \ub2e4\ub978 \ud0c0\uc785\uc758 \ub370\uc774\ud130\ub97c \ud488\uc744 \uc218 \uc788\uace0, \uba54\uc11c\ub4dc\uc640 \uc5f0\uc0b0 \ud504\ub85c\ud37c\ud2f0\ub3c4 \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc0c1\ud0dc \uba38\uc2e0, \uc5d0\ub7ec \ud0c0\uc785, \ub124\ud2b8\uc6cc\ud06c \uc751\ub2f5 \ubaa8\ub378\ub9c1\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0 Swift \ucf54\ub4dc \uacf3\uacf3\uc5d0\uc11c \uc4f0\uc785\ub2c8\ub2e4.<\/p>\n

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\uae30\ubcf8 enum<\/h2>\n
enum Direction {\n    case north\n    case south\n    case east\n    case west\n}\n\nlet heading = Direction.north\n\n\/\/ \ud0c0\uc785\uc774 \uc774\ubbf8 \uc54c\ub824\uc9c4 \uacbd\uc6b0 \ud0c0\uc785\uba85 \uc0dd\ub7b5 \uac00\ub2a5\nvar current: Direction = .east\ncurrent = .west\n<\/code><\/pre>\n
switch\uc640 \ud568\uaed8 \uc4f8 \ub54c enum\uc758 \ud798\uc774 \ub4dc\ub7ec\ub0a9\ub2c8\ub2e4. \ubaa8\ub4e0 \ucf00\uc774\uc2a4\ub97c \ucc98\ub9ac\ud558\uc9c0 \uc54a\uc73c\uba74 \ucef4\ud30c\uc77c \uc624\ub958\uac00 \ub0a9\ub2c8\ub2e4. \ub098\uc911\uc5d0 \ucf00\uc774\uc2a4\ub97c \ucd94\uac00\ud558\uba74 \ucef4\ud30c\uc77c\ub7ec\uac00 \ucc98\ub9ac\ud558\uc9c0 \uc54a\uc740 \uacf3\uc744 \ubaa8\ub450 \uc54c\ub824\uc90d\ub2c8\ub2e4.<\/p>\n
switch heading {\ncase .north: print(\"\ubd81\ucabd\")\ncase .south: print(\"\ub0a8\ucabd\")\ncase .east:  print(\"\ub3d9\ucabd\")\ncase .west:  print(\"\uc11c\ucabd\")\n\/\/ default \ubd88\ud544\uc694 \u2014 \ubaa8\ub4e0 \ucf00\uc774\uc2a4 \ucc98\ub9ac\ub428\n}\n<\/code><\/pre>\n
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rawValue \u2014 \uae30\ubcf8\uac12 \uc5f0\uacb0<\/h2>\n
\uac01 \ucf00\uc774\uc2a4\uc5d0 \uc815\uc218\ub098 \ubb38\uc790\uc5f4 \uae30\ubcf8\uac12(rawValue)\uc744 \ubd99\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
enum Planet: Int {\n    case mercury = 1\n    case venus\n    case earth    \/\/ \uc790\ub3d9\uc73c\ub85c 3\n    case mars     \/\/ \uc790\ub3d9\uc73c\ub85c 4\n}\n\nprint(Planet.earth.rawValue)   \/\/ 3\nprint(Planet(rawValue: 2))     \/\/ Optional(.venus)\nprint(Planet(rawValue: 99))    \/\/ nil\n<\/code><\/pre>\n
rawValue\ub85c \uc0dd\uc131\ud558\uba74 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294 \uac12\uc774 \ub4e4\uc5b4\uc62c \uc218 \uc788\uc73c\ubbc0\ub85c \uc635\uc154\ub110\uc744 \ubc18\ud658\ud569\ub2c8\ub2e4.<\/p>\n
enum HTTPMethod: String {\n    case get    = \"GET\"\n    case post   = \"POST\"\n    case put    = \"PUT\"\n    case delete = \"DELETE\"\n}\n\nlet method = HTTPMethod.get\nprint(method.rawValue)  \/\/ GET\n<\/code><\/pre>\n
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\uc5f0\uad00\uac12(Associated Values) \u2014 \ub370\uc774\ud130\ub97c \ud488\ub294 enum<\/h2>\n
Swift enum\uc758 \ud575\uc2ec \uae30\ub2a5\uc785\ub2c8\ub2e4. \uac01 \ucf00\uc774\uc2a4\ub9c8\ub2e4 \uc11c\ub85c \ub2e4\ub978 \ud0c0\uc785\uc758 \ub370\uc774\ud130\ub97c \ub2f4\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
enum NetworkResult {\n    case success(data: Data, statusCode: Int)\n    case failure(error: String)\n    case loading(progress: Double)\n}\n\nlet result = NetworkResult.success(data: Data(), statusCode: 200)\n\nswitch result {\ncase .success(let data, let code):\n    print(\"\uc131\uacf5: \\(code), \\(data.count) bytes\")\ncase .failure(let error):\n    print(\"\uc2e4\ud328: \\(error)\")\ncase .loading(let progress):\n    print(\"\ub85c\ub529 \uc911: \\(Int(progress * 100))%\")\n}\n<\/code><\/pre>\n
\uc5f0\uad00\uac12 \ub355\ubd84\uc5d0 \ub124\ud2b8\uc6cc\ud06c \uc751\ub2f5\uc758 \uc138 \uac00\uc9c0 \uc0c1\ud0dc\ub97c \ud558\ub098\uc758 \ud0c0\uc785\uc73c\ub85c \ud45c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uac83\uc744 \ubcc4\ub3c4\uc758 \ud074\ub798\uc2a4 \uc138 \uac1c\ub85c \ub9cc\ub4e4\uac70\ub098, \ub515\uc154\ub108\ub9ac\ub85c \ucc98\ub9ac\ud558\ub294 \uac83\ubcf4\ub2e4 \ud6e8\uc52c \uba85\ud655\ud569\ub2c8\ub2e4.<\/p>\n
\uc5f0\uad00\uac12\uc758 \uc77c\ubd80\ub9cc \ud544\uc694\ud560 \ub54c\ub294 _<\/code>\ub85c \ubb34\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n
if case .success(_, let code) = result {\n    print(\"\uc0c1\ud0dc \ucf54\ub4dc: \\(code)\")\n}\n<\/code><\/pre>\n
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\uba54\uc11c\ub4dc\uc640 \uc5f0\uc0b0 \ud504\ub85c\ud37c\ud2f0<\/h2>\n
enum\ub3c4 \uba54\uc11c\ub4dc\uc640 \uc5f0\uc0b0 \ud504\ub85c\ud37c\ud2f0\ub97c \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
enum Suit {\n    case spades, hearts, diamonds, clubs\n\n    var isRed: Bool {\n        self == .hearts || self == .diamonds\n    }\n\n    func symbol() -> String {\n        switch self {\n        case .spades:   return \"\u2660\ufe0f\"\n        case .hearts:   return \"\u2764\ufe0f\"\n        case .diamonds: return \"\u2666\ufe0f\"\n        case .clubs:    return \"\u2663\ufe0f\"\n        }\n    }\n}\n\nlet card = Suit.hearts\nprint(card.isRed)     \/\/ true\nprint(card.symbol())  \/\/ \u2764\ufe0f\n<\/code><\/pre>\n
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CaseIterable \u2014 \ubaa8\ub4e0 \ucf00\uc774\uc2a4 \uc21c\ud68c<\/h2>\n
CaseIterable<\/code>\uc744 \ucc44\ud0dd\ud558\uba74 allCases<\/code> \ud504\ub85c\ud37c\ud2f0\ub85c \ubaa8\ub4e0 \ucf00\uc774\uc2a4\ub97c \ubc30\uc5f4\ub85c \uc5bb\uc2b5\ub2c8\ub2e4.<\/p>\n
enum Season: CaseIterable {\n    case spring, summer, autumn, winter\n}\n\nfor season in Season.allCases {\n    print(season)\n}\n\/\/ spring, summer, autumn, winter\n\nprint(Season.allCases.count)  \/\/ 4\n<\/code><\/pre>\n
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\uc2e4\uc804 \ud328\ud134 1: \uc0c1\ud0dc \uba38\uc2e0<\/h2>\n
UI\ub098 \ub124\ud2b8\uc6cc\ud06c \ub85c\uc9c1\uc758 \uc0c1\ud0dc\ub97c enum\uc73c\ub85c \ud45c\ud604\ud558\uba74 \ucc98\ub9ac\ub418\uc9c0 \uc54a\uc740 \uc0c1\ud0dc\uac00 \uc5c6\uc74c\uc744 \ucef4\ud30c\uc77c\ub7ec\uac00 \ubcf4\uc7a5\ud574\uc90d\ub2c8\ub2e4.<\/p>\n
enum LoadingState {\n    case idle\n    case loading\n    case loaded(items: [String])\n    case error(message: String)\n}\n\nvar state: LoadingState = .idle\n\n\/\/ \uc0c1\ud0dc\uc5d0 \ub530\ub77c UI \uc5c5\ub370\uc774\ud2b8\nfunc updateUI(for state: LoadingState) {\n    switch state {\n    case .idle:\n        showPlaceholder()\n    case .loading:\n        showSpinner()\n    case .loaded(let items):\n        showList(items)\n    case .error(let message):\n        showError(message)\n    }\n}\n<\/code><\/pre>\n
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\uc2e4\uc804 \ud328\ud134 2: \uc5d0\ub7ec \ud0c0\uc785<\/h2>\n
Error<\/code> \ud504\ub85c\ud1a0\ucf5c\uc744 \ucc44\ud0dd\ud55c enum\uc740 Swift\uc758 \uc5d0\ub7ec \ucc98\ub9ac \uc2dc\uc2a4\ud15c\uacfc \ubc14\ub85c \uc5f0\uacb0\ub429\ub2c8\ub2e4. \uc5d0\ub7ec \ucc98\ub9ac\ub294 11\ud3b8\uc5d0\uc11c \uc790\uc138\ud788 \ub2e4\ub8e8\uc9c0\ub9cc, \uc5d0\ub7ec \ud0c0\uc785 \uc790\uccb4\ub294 enum\uc73c\ub85c \ub9cc\ub4dc\ub294 \uac83\uc774 \uad00\ub840\uc785\ub2c8\ub2e4.<\/p>\n
enum FileError: Error {\n    case notFound(path: String)\n    case permissionDenied\n    case corrupted(reason: String)\n}\n\nfunc readFile(at path: String) throws -> String {\n    guard path.hasPrefix(\"\/\") else {\n        throw FileError.notFound(path: path)\n    }\n    return \"\ud30c\uc77c \ub0b4\uc6a9\"\n}\n<\/code><\/pre>\n
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indirect \u2014 \uc7ac\uadc0 \uc5f4\uac70\ud615<\/h2>\n
enum\uc758 \uc5f0\uad00\uac12\uc5d0 \uac19\uc740 enum \ud0c0\uc785\uc774 \ub4e4\uc5b4\uac08 \ub54c\ub294 indirect<\/code>\ub97c \uc501\ub2c8\ub2e4. \ud2b8\ub9ac\ub098 \uc5f0\uacb0 \ub9ac\uc2a4\ud2b8 \uac19\uc740 \uc7ac\uadc0\uc801 \uc790\ub8cc\uad6c\uc870\ub97c \ud45c\ud604\ud560 \ub54c \uc501\ub2c8\ub2e4.<\/p>\n
indirect enum Tree {\n    case leaf(Int)\n    case node(Tree, Tree)\n}\n\nlet tree = Tree.node(\n    .node(.leaf(1), .leaf(2)),\n    .leaf(3)\n)\n<\/code><\/pre>\n
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\ub2e4\ub978 \uc5b8\uc5b4\uc640 \ube44\uad50<\/h2>\n\n\n\n\n\n\n\n\n\n
<\/th>\nC \/ Java<\/th>\nKotlin<\/th>\nSwift<\/th>\n<\/tr>\n<\/thead>\n
\ucf00\uc774\uc2a4\uc5d0 \ub370\uc774\ud130 \ucca8\ubd80<\/td>\n\ubd88\uac00<\/td>\nsealed class<\/code>\ub85c \uac00\ub2a5<\/td>\n\uc5f0\uad00\uac12\uc73c\ub85c \uc9c1\uc811 \uac00\ub2a5<\/td>\n<\/tr>\n
\uba54\uc11c\ub4dc \ud3ec\ud568<\/td>\nJava enum \uac00\ub2a5<\/td>\n\uac00\ub2a5<\/td>\n\uac00\ub2a5<\/td>\n<\/tr>\n
switch \ub9dd\ub77c\uc131<\/td>\n\uac15\uc81c \uc544\ub2d8<\/td>\n\uac15\uc81c \uc544\ub2d8<\/td>\n\uac15\uc81c<\/td>\n<\/tr>\n
rawValue<\/td>\n\uc815\uc218 \uc790\ub3d9 \ud560\ub2f9<\/td>\n\uac00\ub2a5<\/td>\n\uc815\uc218\/\ubb38\uc790\uc5f4 \uc120\ud0dd<\/td>\n<\/tr>\n
\uc804\uccb4 \ucf00\uc774\uc2a4 \uc21c\ud68c<\/td>\nvalues()<\/td>\nvalues()<\/td>\nCaseIterable<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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\ud575\uc2ec \uc694\uc57d<\/h2>\n