ios - 需要帮助将数据从 tableView 传递到另一个 viewController Swift。查看其他示例后仍然出现错误

Question

var passValue:String!
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    var indexPath1 = tableView.indexPathForSelectedRow
    var cell = tableView.cellForRowAtIndexPath(indexPath1!)
    passValue = (cell?.textLabel?.text)!
    print(passValue)
    performSegueWithIdentifier("pushy", sender: self)
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "pushy"
    {
      var viewController1 = segue.destinationViewController as! home

      viewController1.nameLbl.text = passValue// This is the error highlighted
      self.presentViewController(viewController1, animated: true, completion: nil)
    }
}

我一直有错误； fatal error :在解包可选值时意外发现 nil。

Answer 1

确保 viewController1 和 nameLbl 的值不为零!祝你好运!