经过大量研究,我终于找到了答案。
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { // Change `2.0` to the desired number of seconds. // Code you want to be delayed}这会在Swift 3和Swift 4中创建所需的“等待”效果。

经过大量研究,我终于找到了答案。
DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { // Change `2.0` to the desired number of seconds. // Code you want to be delayed}这会在Swift 3和Swift 4中创建所需的“等待”效果。