swift - 我不断收到此错误 : "Implicit use of ' self' in closure; use 'self.' to make capture semantics explicit"

Question

我一直收到这个错误:

Implicit use of 'self' in closure; use 'self.' to make capture semantics explicit

即使我将 self 放在代码中。请指正。

这是我的代码:

@IBAction func doneButton(_ sender: Any) {
    let code = codeTextField.text
    if code == "TEST" || code == "Test" || code == "test" {
        var myAlert = UIAlertController(title:"Alert", message: "You are logging into The Test Zoo, right?", preferredStyle: UIAlertController.Style.alert)
        let yesAction = UIAlertAction(title: "Yes", style: UIAlertAction.Style.default) {
            UIAlertAction in
            performSegue(withIdentifier: "welcomeButton", sender:self)
        }

还有更多，但是 yesAction 需要更正。

Answer 1

performSegue 是一种方法，您在 self 上隐式调用它；显式版本将是 self.performSegue(...)。