{"id":1091,"date":"2026-05-31T01:47:56","date_gmt":"2026-05-30T16:47:56","guid":{"rendered":"https:\/\/nangchang.nes.or.kr\/?p=1091"},"modified":"2026-05-31T01:47:56","modified_gmt":"2026-05-30T16:47:56","slug":"5%ed%8e%b8-%ed%95%a8%ec%88%98-%ed%8c%8c%eb%9d%bc%eb%af%b8%ed%84%b0-%eb%a0%88%ec%9d%b4%eb%b8%94%ec%9d%b4-%eb%91%90-%ea%b0%9c%ec%9d%b8-%ec%9d%b4%ec%9c%a0","status":"publish","type":"post","link":"https:\/\/nangchang.nes.or.kr\/?p=1091","title":{"rendered":"[5\ud3b8] \ud568\uc218 \u2014 \ud30c\ub77c\ubbf8\ud130 \ub808\uc774\ube14\uc774 \ub450 \uac1c\uc778 \uc774\uc720"},"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: 4\ud3b8<\/a><\/p>\n<\/blockquote>\n

Swift \ud568\uc218\ub97c \ucc98\uc74c \ubcf4\ub294 \uc0ac\ub78c\uc740 \ud30c\ub77c\ubbf8\ud130 \uc774\ub984\uc774 \ub450 \uac1c\uc529 \ubd99\uc5b4 \uc788\ub294 \uac83\uc744 \ubcf4\uace0 \uc5b4\ub9ac\ub465\uc808\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n

func move(from start: Int, to end: Int) { ... }\nmove(from: 3, to: 7)\n<\/code><\/pre>\n
from<\/code>\uacfc to<\/code>\ub294 \ud638\ucd9c\ubd80\uc5d0\uc11c \uc4f0\uace0, start<\/code>\uc640 end<\/code>\ub294 \ud568\uc218 \ubcf8\ubb38\uc5d0\uc11c \uc501\ub2c8\ub2e4. \uc774 \uc124\uacc4\uac00 \uc65c \uc874\uc7ac\ud558\ub294\uc9c0\ubd80\ud130 \ud480\uc5b4\ubd05\ub2c8\ub2e4.<\/p>\n
\n
\ud30c\ub77c\ubbf8\ud130 \ub808\uc774\ube14: \uc678\ubd80 \uc774\ub984\uacfc \ub0b4\ubd80 \uc774\ub984<\/h2>\n
Swift \ud568\uc218\uc758 \ud30c\ub77c\ubbf8\ud130\ub294 \uc678\ubd80 \uc774\ub984(argument label)<\/strong>\uacfc \ub0b4\ubd80 \uc774\ub984(parameter name)<\/strong>\uc744 \ub530\ub85c \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
func greet(person name: String) {\n    print(\"\uc548\ub155\ud558\uc138\uc694, \\(name)!\")  \/\/ \ub0b4\ubd80\uc5d0\uc11c\ub294 name \uc0ac\uc6a9\n}\n\ngreet(person: \"\ucca0\uc218\")  \/\/ \ud638\ucd9c\ubd80\uc5d0\uc11c\ub294 person \uc0ac\uc6a9\n<\/code><\/pre>\n
\uc678\ubd80 \uc774\ub984\uc740 \ud638\ucd9c \ucf54\ub4dc\ub97c \uc601\uc5b4 \ubb38\uc7a5\ucc98\ub7fc \uc77d\ud788\uac8c \ub9cc\ub4e4\uae30 \uc704\ud55c \uc7a5\uce58\uc785\ub2c8\ub2e4. greet(person: \"\ucca0\uc218\")<\/code>\ub294 “\ucca0\uc218\ub77c\ub294 \uc0ac\ub78c\uc5d0\uac8c \uc778\uc0ac\ud574”\ub77c\uace0 \uc77d\ud799\ub2c8\ub2e4. \ub0b4\ubd80 \uc774\ub984\uc740 \ud568\uc218 \ubcf8\ubb38\uc5d0\uc11c \uc2e4\uc81c\ub85c \uc4f0\uae30 \ud3b8\ud55c \uc9e7\uc740 \uc774\ub984\uc744 \uc4f8 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4.<\/p>\n
\uc678\ubd80 \uc774\ub984\uc744 \uc0dd\ub7b5\ud558\uace0 \uc2f6\uc744 \ub54c\ub294 _<\/code>\ub97c \uc501\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \ud638\ucd9c\ubd80\uc5d0\uc11c \ub808\uc774\ube14 \uc5c6\uc774 \uac12\ub9cc \uc501\ub2c8\ub2e4.<\/p>\n
func square(_ n: Int) -> Int {\n    return n * n\n}\n\nsquare(5)   \/\/ \ub808\uc774\ube14 \uc5c6\uc774 \ud638\ucd9c\n\/\/ square(n: 5) \ub294 \uc624\ub958\n<\/code><\/pre>\n
\uc678\ubd80 \uc774\ub984\uacfc \ub0b4\ubd80 \uc774\ub984\uc744 \ub530\ub85c \uc4f0\uc9c0 \uc54a\uc73c\uba74 \uac19\uc740 \uc774\ub984\uc774 \ub450 \uc5ed\ud560\uc744 \ubaa8\ub450 \ud569\ub2c8\ub2e4.<\/p>\n
func add(a: Int, b: Int) -> Int {\n    return a + b\n}\n\nadd(a: 3, b: 4)  \/\/ \uc678\ubd80 \uc774\ub984 = \ub0b4\ubd80 \uc774\ub984 = a, b\n<\/code><\/pre>\n
\n
\ubc18\ud658 \ud0c0\uc785<\/h2>\n
\ubc18\ud658 \ud0c0\uc785\uc740 -><\/code> \ub4a4\uc5d0 \uc501\ub2c8\ub2e4.<\/p>\n
func celsius(from fahrenheit: Double) -> Double {\n    return (fahrenheit - 32) * 5 \/ 9\n}\n\nlet temp = celsius(from: 98.6)  \/\/ 37.0\n<\/code><\/pre>\n
\ubc18\ud658\uac12\uc774 \uc5c6\uc73c\uba74 -> Void<\/code>\ub97c \uc4f0\uac70\ub098 \uc544\uc608 \uc0dd\ub7b5\ud569\ub2c8\ub2e4. \ub458\uc740 \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/p>\n
func log(_ message: String) {\n    print(message)\n}\n<\/code><\/pre>\n
\ud568\uc218 \ubcf8\ubb38\uc774 \ud45c\ud604\uc2dd \ud558\ub098\ub85c\ub9cc \uc774\ub8e8\uc5b4\uc9c4 \uacbd\uc6b0 return<\/code>\uc744 \uc0dd\ub7b5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
func square(_ n: Int) -> Int { n * n }\n<\/code><\/pre>\n
\n
\ud29c\ud50c\ub85c \uc5ec\ub7ec \uac12 \ubc18\ud658<\/h2>\n
Swift\ub294 \ud29c\ud50c(tuple)\uc744 \uc774\uc6a9\ud574 \uc5ec\ub7ec \uac12\uc744 \ud55c \ubc88\uc5d0 \ubc18\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
func minMax(of array: [Int]) -> (min: Int, max: Int) {\n    var min = array[0]\n    var max = array[0]\n    for n in array {\n        if n < min { min = n }\n        if n > max { max = n }\n    }\n    return (min, max)\n}\n\nlet result = minMax(of: [3, 1, 8, 2, 5])\nprint(result.min)  \/\/ 1\nprint(result.max)  \/\/ 8\n<\/code><\/pre>\n
\n
\uae30\ubcf8\uac12 \ud30c\ub77c\ubbf8\ud130<\/h2>\n
\ud30c\ub77c\ubbf8\ud130\uc5d0 \uae30\ubcf8\uac12\uc744 \uc9c0\uc815\ud558\uba74, \ud638\ucd9c \uc2dc \uadf8 \uc778\uc790\ub97c \uc0dd\ub7b5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
func repeat(text: String, times: Int = 3) -> String {\n    return String(repeating: text, count: times)\n}\n\nrepeat(text: \"\uc548\ub155\")        \/\/ \"\uc548\ub155\uc548\ub155\uc548\ub155\"\nrepeat(text: \"\uc548\ub155\", times: 5)  \/\/ \"\uc548\ub155\uc548\ub155\uc548\ub155\uc548\ub155\uc548\ub155\"\n<\/code><\/pre>\n
\uae30\ubcf8\uac12\uc774 \uc788\ub294 \ud30c\ub77c\ubbf8\ud130\ub294 \ubcf4\ud1b5 \ub4a4\ucabd\uc5d0 \ubc30\uce58\ud558\ub294 \uac83\uc774 \uad00\ub840\uc785\ub2c8\ub2e4.<\/p>\n
\n
\uac00\ubcc0 \uc778\uc790<\/h2>\n
\ud0c0\uc785 \ub4a4\uc5d0 ...<\/code>\uc744 \ubd99\uc774\uba74 \uac19\uc740 \ud0c0\uc785\uc758 \uac12\uc744 \uac1c\uc218 \uc81c\ud55c \uc5c6\uc774 \ubc1b\uc2b5\ub2c8\ub2e4. \ud568\uc218 \ub0b4\ubd80\uc5d0\uc11c\ub294 \ubc30\uc5f4\ub85c \ucde8\uae09\ub429\ub2c8\ub2e4.<\/p>\n
func sum(_ numbers: Int...) -> Int {\n    return numbers.reduce(0, +)\n}\n\nsum(1, 2, 3)         \/\/ 6\nsum(10, 20, 30, 40)  \/\/ 100\n<\/code><\/pre>\n
\n
inout \u2014 \ud568\uc218 \uc548\uc5d0\uc11c \uc678\ubd80 \uac12 \ubcc0\uacbd<\/h2>\n
Swift \ud568\uc218\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \uc778\uc790\ub97c \ubcf5\uc0ac\ud574\uc11c \ubc1b\uc2b5\ub2c8\ub2e4. \ud568\uc218 \ub0b4\ubd80\uc5d0\uc11c \ud30c\ub77c\ubbf8\ud130\ub97c \ubc14\uafd4\ub3c4 \uc6d0\ubcf8\uc5d0\ub294 \uc601\ud5a5\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n
func double(_ n: Int) {\n    var n = n\n    n *= 2\n    \/\/ \uc6d0\ubcf8\uc740 \uadf8\ub300\ub85c\n}\n\nvar x = 5\ndouble(x)\nprint(x)  \/\/ 5 (\ubcc0\ud558\uc9c0 \uc54a\uc74c)\n<\/code><\/pre>\n
\uc6d0\ubcf8\uc744 \ubcc0\uacbd\ud558\uace0 \uc2f6\ub2e4\uba74 inout<\/code>\uc744 \uc501\ub2c8\ub2e4. \ud638\ucd9c\ubd80\uc5d0\uc11c\ub294 \ubcc0\uc218 \uc55e\uc5d0 &<\/code>\ub97c \ubd99\uc785\ub2c8\ub2e4.<\/p>\n
func doubleInPlace(_ n: inout Int) {\n    n *= 2\n}\n\nvar x = 5\ndoubleInPlace(&x)\nprint(x)  \/\/ 10\n<\/code><\/pre>\n
&<\/code>\ub294 “\uc774 \ubcc0\uc218\uc758 \uc8fc\uc18c\ub97c \ub118\uae34\ub2e4”\ub294 \uc2e0\ud638\uc785\ub2c8\ub2e4. \ud568\uc218\uac00 \uc6d0\ubcf8\uc744 \ubc14\uafc0 \uc218 \uc788\ub2e4\ub294 \uc0ac\uc2e4\uc744 \ud638\ucd9c\ubd80\uc5d0\uc11c\ub3c4 \uba85\uc2dc\uc801\uc73c\ub85c \ud45c\uc2dc\ud558\uac8c \ud569\ub2c8\ub2e4. \ud45c\uc900 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 swap(_:_:)<\/code>\uc774 \uc774 \ud328\ud134\uc73c\ub85c \uad6c\ud604\ub429\ub2c8\ub2e4.<\/p>\n
\n
\ud568\uc218\ub294 \uc77c\uae09 \uc2dc\ubbfc\uc774\ub2e4<\/h2>\n
Swift\uc5d0\uc11c \ud568\uc218\ub294 \uc77c\uae09 \uc2dc\ubbfc(first-class citizen)<\/strong>\uc785\ub2c8\ub2e4. \uc774\ub294 \ud568\uc218\ub97c \uac12\ucc98\ub7fc \ub2e4\ub8f0 \uc218 \uc788\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4.<\/p>\n