IOS APP開發入門案例
1.建立新項目
2.設計布局,main.storyboard中,在控件庫中
![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiIx0DciV2dmADM30zd-cmbw5ib1c0Y1lEVOJTWE5UMZpXT0AzQPJzYE10dNRlT3lEROhXRE1UNFRUT5BzQNdXRE10dFRVT2VERNVTRE1Ue4MUT3VERNdXRU1kdjJjYzpkMMRXOykVdNNjW2hXbZVnTtxENFRUT5N2ViBXO5xkNNh0YwIFSh9CXt92YuM3YltWas5iclN3Ztl2Lc9CX6MHc0RHaiojIsJye.png)
3.布局控件關聯控制器
4.設定事件或者顯示模式
5.編寫代碼:
import UIKit
class ViewController: UIViewController {
@IBAction func btn1(_ sender: UIButton) {
label1.text="我的第一個程式"
}
@IBOutlet weak var label1: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
@IBOutlet weak var hello: UILabel!
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
最後運作:
點選按鈕改變label控件文字: