[英]int32 is not convertible to int
我正在尝试在xcode中创建一个随机数生成器ios应用,尝试使用rand()方法时遇到错误,但出现以下错误; “ int32不能转换为int”我试图将“ int”更改为“ int32”,它没有给我任何错误,但是由于我没有这样做,所以没有显示任何数字。 我该如何解决这个问题?
注意:我使用的是快速语言
码:
@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初始化一个Int:
let text: Int = Int(rand())
@IBAction func btnGenerateNum(sender: UIButton, forEvent event: UIEvent) {
lblNum.text = "\(arc4random_uniform(10))"
}
这样会更方便吗? (不一定是您提出的随机数生成器问题的解决方案)
let text = String((Int(rand())) % 10)
lblNum.text = text
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