16.For-in跳跃遍历
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)
}
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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)
}
Last updated
Was this helpful?