我正在用 Swift 撰寫我的應用程式。這是viewDidLoad()函式：
override func viewDidLoad() {
super.viewDidLoad()
if !self.check_file() {
print("Missing file to read")
performSegueWithIdentifier("missingfileViewController", sender: nil)
}
}
這是check_file()功能：
func check_file() -> Bool {
let fileManager = FileManager.default
return fileManager.fileExists(atPath:"/Applications/Readfile.app/Contents/Resources/textfile/readthis.txt")
}
我收到此錯誤Cannot find 'performSegueWithIdentifier' in scope。誰能幫我這個？非常感謝
編輯：我什至嘗試使用self.performSegueWithIdentifier，但出現了另一個錯誤：Value of type 'ViewController' has no member 'performSegueWithIdentifier'
uj5u.com熱心網友回復：
self.performSegue(withIdentifier: "missingfileViewController", sender: self)
試試這個
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標籤：迅速