[英]int32 is not convertible to int
我正在嘗試在xcode中創建一個隨機數生成器ios應用,嘗試使用rand()方法時遇到錯誤,但出現以下錯誤; “ int32不能轉換為int”我試圖將“ int”更改為“ int32”,它沒有給我任何錯誤,但是由於我沒有這樣做,所以沒有顯示任何數字。 我該如何解決這個問題?
注意:我使用的是快速語言
碼:
@IBOutlet var lblNum: UILabel!
@IBAction func btnGenerateNum(sender: UIButton, forEvent event: UIEvent) {
let text: Int = rand()
switch(text) {
case 0:
lblNum.text = "0"
break;
case 1:
lblNum.text = "1"
break;
case 2:
lblNum.text = "2"
break;
case 3:
lblNum.text = "3"
break;
case 4:
lblNum.text = "4"
break;
case 5:
lblNum.text = "5"
break;
case 6:
lblNum.text = "6"
break;
case 7:
lblNum.text = "7"
break;
case 8:
lblNum.text = "8"
break;
case 9:
lblNum.text = "9"
break;
default:
break;
}
只需使用您的Int32初始化一個Int:
let text: Int = Int(rand())
@IBAction func btnGenerateNum(sender: UIButton, forEvent event: UIEvent) {
lblNum.text = "\(arc4random_uniform(10))"
}
這樣會更方便嗎? (不一定是您提出的隨機數生成器問題的解決方案)
let text = String((Int(rand())) % 10)
lblNum.text = text
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