Question

我收到了这个愚蠢的错误，但我无法找到它的来源。如果有人能够查看我的代码并不是很好，那么我可能会看到一些非常简单的东西！错误是＆＃34;预期表达＆＃34;在最后一行代码！谢谢！

//
//  ViewController.swift
//  intern
//
//  Created by Lani  Daniels on 8/1/17.
//  Copyright © 2017 Lani  Daniels. All rights reserved.
//

import UIKit
import Firebase
import FirebaseDatabase
import FirebaseAuth


class HomeViewController: UIViewController, UITextFieldDelegate {

    @IBOutlet weak var emailField: UITextField!
    @IBOutlet weak var passwordField: UITextField!

    @IBOutlet weak var actionButton: UIButton!
    override func viewDidLoad() {
        super.viewDidLoad()


        //Do any additional setup after loading the view, typically from a nib.
        self.passwordField.delegate = self;

    }
    @IBAction func createNew(_ sender: Any) {
        self.performSegue(withIdentifier: "createAccount", sender: self)

    }
    @IBAction func signInTapped(_ sender: Any) {
        self.performSegue(withIdentifier: "toMM", sender: self)
        if emailField.text != "" && passwordField.text != ""
        {
            Auth.auth().signIn(withEmail: emailField.text!, password: passwordField.text!, completion: { (user, error) in if user != nil
            {
                // Sign in successful
                }
                else
            {
                if let myError = error?.localizedDescription
                {
                    print(myError)
                }
                else
                {
                    print("ERROR")
                }
                }}
            )
            func textFieldShouldReturn(_ textField: UITextField) -> Bool {
                self.view.endEditing(true)
                return false
                )}}}}  //ERROR: EXPECTED EXPRESSION

Answer 1

几个关闭字符放错了地方。这是您的代码，格式正确：

//
//  ViewController.swift
//  intern
//
//  Created by Lani  Daniels on 8/1/17.
//  Copyright © 2017 Lani  Daniels. All rights reserved.
//

import UIKit
import Firebase
import FirebaseDatabase
import FirebaseAuth


class HomeViewController: UIViewController, UITextFieldDelegate {

    @IBOutlet weak var emailField: UITextField!
    @IBOutlet weak var passwordField: UITextField!

    @IBOutlet weak var actionButton: UIButton!
    override func viewDidLoad() {
        super.viewDidLoad()

        //Do any additional setup after loading the view, typically from a nib.
        self.passwordField.delegate = self;

    }
    @IBAction func createNew(_ sender: Any) {
        self.performSegue(withIdentifier: "createAccount", sender: self)

    }

    @IBAction func signInTapped(_ sender: Any) {
        self.performSegue(withIdentifier: "toMM", sender: self)
        if emailField.text != "" && passwordField.text != ""
        {
            Auth.auth().signIn(withEmail: emailField.text!, password: passwordField.text!, completion: { (user, error) in
                if user != nil
                {
                    // Sign in successful
                }
                else
                {
                    if let myError = error?.localizedDescription
                    {
                        print(myError)
                    }
                    else
                    {
                        print("ERROR")
                    }
                }
            })
        }
    }

    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        self.view.endEditing(true)
        return false
    }
}

预期表达式错误Swift 3

1 个答案: