Swift

Swift ํ•จ์ˆ˜

2021. 11. 20. 20:40
๋ชฉ์ฐจ
  1. ๐Ÿ“Œ ๋ชฉ์ฐจ
  2. ๐Ÿ“Œ ๊ธฐ๋ณธํ˜•ํƒœ
  3. ์˜ˆ์ œ
  4. ๐Ÿ“Œ ํŒŒ๋ผ๋ฏธํ„ฐ ๊ธฐ๋ณธ๊ฐ’ ์„ค์ •
  5. ๐Ÿ“Œ ์ „๋‹ฌ์ธ์ž ๋ ˆ์ด๋ธ”
  6. ๐Ÿ“Œ ๊ฐ€๋ณ€ ๋งค๊ฐœ๋ณ€์ˆ˜
๋ฐ˜์‘ํ˜•

๐Ÿ“Œ ๋ชฉ์ฐจ

  • ๊ธฐ๋ณธ ํ˜•ํƒœ
  • ํŒŒ๋ผ๋ฏธํ„ฐ ๊ธฐ๋ณธ ๊ฐ’
  • ์ „๋‹ฌ์ธ์ž ๋ ˆ์ด๋ธ”
  • ๊ฐ€๋ณ€ ๋งค๊ฐœ๋ณ€์ˆ˜

๐Ÿ“Œ ๊ธฐ๋ณธํ˜•ํƒœ

func ํ•จ์ˆ˜๋ช… (์ „๋‹ฌ์ธ์ž ๋ ˆ์ด๋ธ”: ํŒŒ๋ผ๋ฏธํ„ฐ ์ด๋ฆ„: ๋ฐ์ดํ„ฐ ํƒ€์ž…) -> ๋ฐ˜ํ™˜ ํƒ€์ž… {
   return ๋ฐ˜ํ™˜ ๊ฐ’
}

์˜ˆ์ œ

func sum (a: Int, b: Int) -> Int {
  return a + b
}

sum(a: 2, b :3) // 5

๐Ÿ“Œ ํŒŒ๋ผ๋ฏธํ„ฐ ๊ธฐ๋ณธ๊ฐ’ ์„ค์ •

func printName(name: String = "Eddie") {
  print("Hello \(name)")
}

printName()

๐Ÿ“Œ ์ „๋‹ฌ์ธ์ž ๋ ˆ์ด๋ธ”

func sendMessage(from myName: String, to name: String) -> String {
  return "Hello \(name)! I am \(myName)"
}

sendMessage(from: "Sam", to: "Eddie") // "Hello Eddie! I am Sam"

์ด๋ ‡๊ฒŒ ์ „๋‹ฌ์ธ์ž๋ฅผ ํ˜ธ์ถœํ• ๋•Œ ์ข€๋” ๋ช…์‹œ์ ์ธ ์ด๋ฆ„์œผ๋กœ ๋ฐ”๊ฟ€์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

ํ•˜์ง€๋งŒ ๋งŒ์•ฝ์— _๋ฅผ ์“ด๋‹ค๋ฉด ์•„๋ฌด๊ฒƒ๋„ ์•ˆ์“ฐ๋Š” ํ˜•ํƒœ๋กœ ๋งŒ๋“ค์ˆ˜ ์žˆ์–ด์š”.

func sub(_ a: Int, _ b: Int) -> Int {
  return a - b
}

sub(4, 1)

๐Ÿ“Œ ๊ฐ€๋ณ€ ๋งค๊ฐœ๋ณ€์ˆ˜

ํ•จ์ˆ˜๋งˆ๋‹ค ํ•˜๋‚˜์˜ ๊ฐ€๋ณ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋ฅผ ๊ฐ€์งˆ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

func sayHello(me: String, friends: String...) -> String {
  return "HELLO \(friends)  !!! by \(me)"
}

sayHello(me: "Eddie", friends: "Sam", "Claire", "Jason") // "HELLO ["Sam", "Claire", "Jason"]  !!! by Eddie"
๋ฐ˜์‘ํ˜•

'Swift' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

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  1. ๐Ÿ“Œ ๋ชฉ์ฐจ
  2. ๐Ÿ“Œ ๊ธฐ๋ณธํ˜•ํƒœ
  3. ์˜ˆ์ œ
  4. ๐Ÿ“Œ ํŒŒ๋ผ๋ฏธํ„ฐ ๊ธฐ๋ณธ๊ฐ’ ์„ค์ •
  5. ๐Ÿ“Œ ์ „๋‹ฌ์ธ์ž ๋ ˆ์ด๋ธ”
  6. ๐Ÿ“Œ ๊ฐ€๋ณ€ ๋งค๊ฐœ๋ณ€์ˆ˜
'Swift' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
  • Swift ๊ตฌ์กฐ์ฒด์™€ ํด๋ž˜์Šค
  • Swift ์˜ต์…”๋„
  • Swift ์ปฌ๋ ‰์…˜ ํƒ€์ž…
  • Swift for loop and While
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Swift ํ•จ์ˆ˜
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* ๋‹จ์ถ•ํ‚ค๋Š” ํ•œ๊ธ€/์˜๋ฌธ ๋Œ€์†Œ๋ฌธ์ž๋กœ ์ด์šฉ ๊ฐ€๋Šฅํ•˜๋ฉฐ, ํ‹ฐ์Šคํ† ๋ฆฌ ๊ธฐ๋ณธ ๋„๋ฉ”์ธ์—์„œ๋งŒ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค.