for(SKNode * nodes in nodes) in swift

Question

我是 swift 的新手，正在学习我用 “ for(SKNode * node in nodes) ” 选择名称在 objective-C 中但在 swift 中的特定节点，我需要一些帮助才能做到这一点。提前致谢

Answer 1

在SWIFT

for node in nodes {

}

Answer 2

这是一个在 swift 中使用 "for" 循环的简单示例：

    let arrStrings = ["one","two","three","four"]

    for str in arrStrings
    {
       if str=="two"
       {
         println("\(str)")
       }
    }

Answer 3

override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
            let touch = touches.anyObject() as UITouch
            let touchLocation = touch.locationInNode(self)
            let nodes = self.nodesAtPoint(touchLocation) as [SKNode]

            for node in nodes {
                if let nodeName = node.name {
                    if nodeName == "myNodeName" {
                        println("node tapped")
                    }
                }
            }
        }

要检查节点是否被点击，使用 for 循环进行迭代。循环遍历 SKNodes，并检查节点名称是否匹配。不同之处在于我们有：

而不是 (SkNode* node)

let nodes = self.nodesAtPoint(touchLocation) as [SKNode]

for(SKNode * nodes in nodes) in swift

for(SKNode * node in nodes) in swift

ios

swift

sknode