如果你对任何多星建议有问题，确保你在viewDidLoad()中注册你的UITableViewCells，而不是从init()

这应该可以工作:

override func viewDidLoad() {
    super.viewDidLoad()

    var button = UIBarButtonItem(title: "YourTitle", style: UIBarButtonItemStyle.Bordered, target: self, action: "goBack")
    self.navigationItem.backBarButtonItem = button

}

func goBack()
{
    self.navigationController?.popViewControllerAnimated(true)
}

虽然不建议这样做，因为这实际上取代了backButton，它也删除了后退箭头和滑动手势。

如果你对任何多星建议有问题，确保你在viewDidLoad()中注册你的UITableViewCells，而不是从init()

有两种不同的方法来植入那部分，  

1.

navigationItem.backButtonTitle = "Title Goes Here"

(5)迅速

  2.

 let backButton = UIBarButtonItem()

backButton。title = "标题在这里" self.navigationController .navigationBar.topItem ?。backBarButtonItem = backButton

试试这个…它将工作....

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    self.title = ""
}

上面的代码将隐藏文本，只显示导航栏上的后退箭头。

back按钮属于前一个视图控制器，而不是当前显示在屏幕上的那个。 要修改返回按钮，你应该在按之前更新它，在启动segue的视图控制器上:

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    let backItem = UIBarButtonItem()
    backItem.title = "Something Else"
    navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}

Swift 3,4和5:

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    let backItem = UIBarButtonItem()
    backItem.title = "Something Else"
    navigationItem.backBarButtonItem = backItem // This will show in the next view controller being pushed
}

OR

// in your viewDidLoad or viewWillAppear
navigationItem.backBarButtonItem = UIBarButtonItem(
    title: "Something Else", style: .plain, target: nil, action: nil)