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[Grammer] 09 - Boolean, 10 - Strings and Characters

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Published: 25 Jan 2019 › Updated: 25 Jan 2019[Grammer] 09 - Boolean, 10 - Strings and Characters

[Grammer] 09 - Boolean, 10 - Strings and Characters

  • Boolean: 참/거짓을 구분.
    Swift에서는 true, false 2가지만 소문자로 존재.
    if 조건문이나 while 반복문에 자주 사용
import UIKit

let valid: true
let invalid = false

let hasName: Bool = true
let isMember: Bool = false
  • Strings : 문자열. " " 큰따옴표 사이에 표현. (ex: "Daniel", "123", "true", "", " ")
  • Characters: 문자를 표현. 자료형을 직접 지정하지 않는다면 모두 String으로 지정됨.
let char: Character = "c"
let str: String = "MyNameIsGeonhwi"

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