小编Pet*_*r L的帖子

我正在尝试将值保存到精灵的用户数据中并能够将其读取.

继承人我所拥有的,由于某种原因,价值永远不会得到保存并保持为零.

import SpriteKit

let frame = SKScene()

func createSprite() {
    let sprite = SKSpriteNode()
    sprite.userData?.setValue("100", forKeyPath: "key")
    frame.addChild(sprite)
}

createSprite()

for child in frame.children where child is SKSpriteNode {
    print(child.userData?.valueForKey("key") as? String)
    //prints the value saved in the childs user data

    if child.userData?.valueForKey("key") as? String == "100" {
        print("It was a Success!")
    }
    if child.userData?.valueForKey("key") as? String == nil {
        print("There was a problem :(")
    }
}

我试图让输入文本字段在左上角显示文本，现在文本在中间垂直和水平居中。

<input class="userInput" type="text">
<style>
.userInput {
text-align: left;
margin: 1px;
padding: 1px;
width: 500px;
height: 300px;
vertical-align: top;
}
</style>