// MARK: var, let 이해
let numOfEyes = 2
var fisrtName = "John"


// MARK: Array, Dictionary 이해
let scores: [Int] = [56, 92, 100, 80]
let firstScore = scores[0]

let libraryInfo: [String: Any] = ["name": "Coffee and Library", "price": 12000, "location": "Bundang"]
let libaryName = libraryInfo["name"]



// MARK: 조건문
if firstScore > 90 {
    print("you are very smart")
} else {
    print("you are smart, too")
}


let nameKey = "name"
let priceKey = "price"
let locationKey = "location"

var anyKey = nameKey
switch anyKey {
case nameKey:
    print("value is \(libraryInfo[anyKey])")
case priceKey:
    print("value is \(libraryInfo[anyKey])")
case locationKey:
    print("value is \(libraryInfo[anyKey])")
default:
    print("there is no such a key in dictionary")
}

// MARK: 반복문
// print all scores
for score in scores {
    print("score is \(score)")
}


// MARK: Class
class Student {
    var score: Int
    var name: String

    init(score: Int, name: String) {
        self.score = score
        self.name = name
    }

    func printScore() {
        print("my score is \(score)")
    }

    func nameAndSchool() -> String {
        return "my name is \(name), I'm a student of XX univ."
    }
}

// MARK: Struct
struct Book {
    let author: String
    let title: String
    let price: Int

}