swift - 删除 isLeapMonth : false

Question

以下代码应返回自单元格创建以来的天数，确实如此，但它也返回 isLeapMonth: false。这是为什么？我怎样才能删除它？

let cell = super.tableView(tableView, cellForRowAt: indexPath)
cell.textLabel?.text = itemArray[indexPath.row].title
let startDate = itemArray[indexPath.row].dateCreated
let currentDate = Date()
let components = Set<Calendar.Component>([.day])
let differenceOfDate = Calendar.current.dateComponents(components, from: startDate!, to: currentDate)
cell.detailTextLabel?.text = "\(differenceOfDate)"
return cell

Answer 1

这是因为 differenceOfDate 是 DateComponents 类型，并且不会返回数字。如果您需要获取天数，可以通过获取 DateComponents

的 day 属性来获取此数字

Calendar.current.dateComponents(components, from: startDate!, to: currentDate).day!