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YoonC
Swift - Important Swift Concepts ๋ณธ๋ฌธ
๐Object Oriented Programming
Swift Functions
// ํจ์ ์ ์ธ์
func ํจ์์ด๋ฆ(Args) {
code to run when function called
}
// ํจ์ ํธ์ถ์
ํจ์์ด๋ฆ()
// ์ฌ์ฉ =====================================
func dayOfWeek(day: String){
print("Today is \(day).")
}
dayOfWeek(day: "Monday");
Swift Take Data From a Function
๐๐ป ์คํํ ํจ์์ ๊ฐ์ ์ฐ๊ณ ์ถ๋ค๋ฉด return ์ฌ์ฉํ๊ณ -> ๋ฆฌํดํ์ ์ผ๋ก ๋ฆฌํด์ ํ์ ์ ์ด์ฃผ๊ธฐ
// ๋ฆฌํด์ ์ฌ์ฉ๋ฒ
func ํจ์์ด๋ฆ(Args: Types) -> Int {
return value
}
Swift Classes and Methods
๐๐ป Class ์ Object ๊ฐ๋จํ ๋งํ์๋ฉด Class๋ ๋ถ์ด๋นตํ์ด๊ณ Object๋ ์ด ํ์ ์ด์ฉํด ๋ง๋ ํฅ๋ถ, ์๋ถ ๊ฐ์๊ฒ๋ค.
class Car{
var brand = ""
var modelYear = 0
var color = ""
// โ๏ธ method
func drive(){
print("๋ถ๋ฆ๋ถ๋ฆโ๏ธ")
}
print("๐๐") // => โ ํด๋์ค ์์์๋ variable ๋๋ method๋ง ๊ฐ๋ฅ
}
var myCar = Car();
myCar.modelYear = 2021
myCar.modelYear // 2021์
myCar.color = "green"
myCar.brand = "audi"
myCar.drive(). // ๋ถ๋ฆ๋ถ๋ฆโ๏ธ ์ถ๋ ฅ
๐๐ป Method๋ class ์์ function์ด๋ค. ์์ ์์ฑํ ์ฝ๋ ์ฐธ์กฐ
โญ๏ธ ํด๋์ค ์์์๋ variable ๋๋ method๋ง ๊ฐ๋ฅ
Swift Build Class hierarchy
๐๐ป Inheritance : ํด๋์ค๊ฐ ์์ฑ์ ๋ค๋ฅธ ํด๋์ค๋ก๋ถํฐ ๋น๋ ค์ค๋ ๊ฐ๋ - can build specific version of objects
class Vehicle{
var brand = ""
func drive(){
print("vroom vroom")
}
}
// Truck ์ Vehicle์ ์์๋ฐ์ผ๋ฏ๋ก brand๋ ๊ฐ์ง ์ ์์ผ๋ฉฐ drive ํจ์ ์ฌ์ฉ๊ฐ๋ฅ
class Truck : Vehicle{
var color = ""
// ํจ์ ์ฌ์ ์
override func drive(){
print("๋ถ๋ฆ ๋ถ๋ฆ")
super.drive() // super๋ ๋ถ๋ชจ๋ก ๊ฐ๊ธฐ๋๋ฌธ์ ๋ค์ vroom vroom ์ด๋ผ๊ณ ์ถ๋ ฅ๋จ
}
}
'Develop > Swift' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
Swift - Routing on IOS (0) | 2021.09.29 |
---|---|
Swift - Listing Data on IOS (0) | 2021.09.23 |
Swift - Reach Data from UI (0) | 2021.09.23 |
Swift - Create UI (0) | 2021.09.23 |
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