什么相当于“dispatch_apply”在Swift 3？ [英] What is equivalent of "dispatch_apply" in Swift 3?

问题描述

我一直在swift3中搜索相当于dispatch_apply的东西。请帮帮我

I have been searching for an equivalent of dispatch_apply in swift3. Help me please

转换

    let queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    dispatch_apply(2, queue) { (index)  in
    }

推荐答案

你还记得 dispatch_apply（）吗？嗯，它仍然存在，并得到一个新的名字。从现在开始，您必须致电 concurrentPerform（）

Do you still remember dispatch_apply(). Well, it's still there and got a new name. From now on you have to call concurrentPerform()

更改此

dispatch_apply(2, queue) { (index)  in
}

进入

DispatchQueue.concurrentPerform(iterations: 2) {
print("\($0). concurrentPerform")
}

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