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Swift 对比两个 Date 之间相差天数,
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@H_502_3@import Foundation
extension Date {
func daysBetweenDate(toDate: Date) -> Int {
@H_502_3@let components = Calendar.current.dateComponents([.day],from: self,to: toDate) return components.day ?? 0 } }
@H_502_3@let formatter = DateFormatter()
formatter.dateFormat = "YYYYMMdd"
@H_502_3@let endDate = formatter.date(from: "20181220")
@H_502_3@let date = Date()
@H_502_3@let days = Date().daysBetweenDate(toDate: endDate!)
print("相差天数为 ==",days)