将用户textField输入追加到其他视图控制器的数组中

 ```swift

 override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

     if segue.identifier == "YourSegueIdentifier" {

         let destinationVC = segue.destination as! YourDestinationViewController

         destinationVC.dataArray = dataArray

     }

 }

 ```

 ```swift

 protocol YourDelegate {

     func passData(dataArray: [String])

 }

 class SourceViewController: UIViewController {

     var delegate: YourDelegate?

     // 在某个事件触发时调用代理方法

     func sendData() {

         delegate?.passData(dataArray: dataArray)

     }

 }

 class DestinationViewController: UIViewController, YourDelegate {

     var dataArray: [String] = []

     func passData(dataArray: [String]) {

         self.dataArray = dataArray

     }

 }

 ```