Question

我有一个应用程序，使用每个日历组件的Calendar.component记录开始时间和日期（即let hour = calendar.component（.hour，from：date））并在之后将数据发送到Google表单按下另一个按钮。当分钟或秒以0开始时，0会被丢弃，我得到一个这样的结果：4：2：3应该是04:02:03。

以下是代码：

        let date = Date()
        let calendar = Calendar.current

        let hour = calendar.component(.hour, from:date)
        let minutes = calendar.component(.minute, from:date)
        let seconds = calendar.component(.second, from:date)

        let day = calendar.component(.day, from: date)
        let month = calendar.component(.month, from: date)
        let year = calendar.component(.year, from: date)


        startTime = "\(hour):\(minutes):\(seconds)"
        startDate = "\(month)/\(day)/\(year)"

Answer 1

你不需要日历＆amp;单独的日期对象。 Date Object将同时执行这两项操作。
DateFormatter是执行此操作的正确方法。

//        unnecessary code
/*        let calendar = Calendar.current
    let hour = calendar.component(.hour, from:date)
    let minutes = calendar.component(.minute, from:date)
    let seconds = calendar.component(.second, from:date)
    let day = calendar.component(.day, from: date)
    let month = calendar.component(.month, from: date)
    let year = calendar.component(.year, from: date)
 */

    let date = Date()
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "hh:mm:ss"

    var startTime = dateFormatter.string(from: date)

    dateFormatter.dateFormat = "M/dd/yyyy"
    var startDate = dateFormatter.string(from: date)

在Swift中发布到Google表单时会丢弃0

1 个答案: