Swift 对比两个 Date 之间相差天数

概述/// DateTools.swiftimport Foundationextension Date { func daysBetweenDate(toDate: Date) -> Int { let components = Calendar.current.dateComponents([.day], from: self, to: toDate) return

/// Datetools.swiftimport Foundationextension Date {    func daysBetweenDate(toDate: Date) -> Int {        let components = Calendar.current.dateComponents([.day],from: self,to: toDate) return components.day ?? 0 } } 

/// xxxController.swift let formatter = DateFormatter() formatter.dateFormat = "YYYYMMdd" let endDate = formatter.date(from: "20181220") /// 当前日期 - 考试日期 let date = Date() let days = Date().daysBetweenDate(toDate: endDate!) print("相差天数为 ==",days)

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