Swift 的步幅(从 : , 到 : , 由:)导致 "cannot invoke"

Question

我是第一次使用 Swift 的步幅。但是，由于我无法使其正常工作，因此 first 即将成为最后一个:

let boundingBox = createdShape.frame //=SKShapeNode
stride(from: Int(boundingBox.minX), to: Int(boundingBox.maxX), by: 10) {

结果是:

Cannot invoke 'stride' with an argument list of type '(from: Int, to: Int, by: Int, () -> ())'

我做错了什么？

Answer 1

语法应该是:

let boundingBox = createdShape.frame //=SKShapeNode
for x in stride(from: Int(boundingBox.minX), to: Int(boundingBox.maxX), by: 10) {
  // TODO: Use x here.
}