将日期（绝对时间）转换为通过Swift在网络上作为数据发送接收的日期？

将日期（绝对时间）转换为通过Swift在网络上作为数据发送/接收的日期？

您可以

Date

将其转换为

Data

（8字节浮点数）并将其发送回

Date

如下：

extension Numeric {    var data: Data {        var source = self        return .init(bytes: &source, count: MemoryLayout<Self>.size)    }    init<D: DataProtocol>(_ data: D) {        var value: Self = .zero        let size = withUnsafeMutableBytes(of: &value, { data.copyBytes(to: 
extension UInt64 {    var bitPattern: Double { .init(bitPattern: self) }}
)} )        assert(size == MemoryLayout.size(ofValue: value))        self = value    }}

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extension Date {    var data: Data { timeIntervalSinceReferenceDate.bitPattern.littleEndian.data }    init<D: DataProtocol>(data: D) {        self.init(timeIntervalSinceReferenceDate: data.timeIntervalSinceReferenceDate)    }}

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extension DataProtocol {    func value<N: Numeric>() -> N { .init(self) }    var uint64: UInt64 { value() }    var timeIntervalSinceReferenceDate: TimeInterval { uint64.littleEndian.bitPattern }    var date: Date { .init(data: self) }}

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let date = Date() // "Nov 15, 2019 at 12:13 PM"let data = date.data         // 8 bytesprint(Array(data))// "[25, 232, 158, 22, 124, 191, 193, 65]n"let loadedDate = data.date   // "Nov 15, 2019 at 12:13 PM"print(date == loadedDate)    // "true"

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