Swift - PickerView를 통하여 데이터 가져오기

//ViewController
 
 
import UIKit
 
class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource {
 
    @IBOutlet weak var picker: UIPickerView!
    @IBOutlet weak var label: UILabel!
    var selectRow = 0
    var Array = ["Red","Blue","White","Black","Pupple"]
    
    
    
    
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        picker.delegate = self
        picker.dataSource = self
       
    }
 
    // 뭘 보여줄거냐
    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return Array[row]
    }
    // 총 갯수
    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return Array.count
    }
    // 몇개씩 보여줄꺼냐?
    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
        return 1
    }
    // 선택한 Array의 row값을 가져오기 위해서 초기값인 selectRow에 해당 row를 가져옴
    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        selectRow = row
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
 
 
    
    @IBAction func buttonTapped(sender: AnyObject) {
    
    label.text = Array[selectRow]
    }
    
    
    
    
}