> For the complete documentation index, see [llms.txt](https://ryukiedev.gitbook.io/wiki/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ryukiedev.gitbook.io/wiki/swift/forin-tiao-yue-bian-li.md).

# 16.For-in跳跃遍历

```swift
let hours = 12
let hourInterval = 3
for tickMark in stride(from: 3, through: hours, by: hourInterval) {
    // 每3小时渲染一个刻度线（3, 6, 9, 12）
}
```