swift

1.

weak var weakSelf = self

  

2.

            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now()) {[weak self] in
                self?.v.showAppLoadView(deadTime: deadTime, complantBlock: complantBlock)
            }

  

3.

原文地址:https://www.cnblogs.com/qingzZ/p/10189144.html