獲取兩個DateTime實例的差異（以毫秒為單位）

Question

這樣做的適當的萬無一失的方法是什么？ 我正在使用ASP.NET MVC 3。

Answer 1

        DateTime a = ...
        DateTime b = ...
        var ms = a.Subtract(b).TotalMilliseconds;

Answer 2

(datetime2 - datetime1).TotalMilliseconds

Answer 3

我認為這應該有效。 既然你要求萬無一失，我假設你不知道后兩者中的哪一個是:)

Math.Abs((date1 - date2).TotalMilliseconds)

Answer 4

減法將是我的選擇......

DateTime earlier = DateTime.Now;
// ...
DateTime later = DateTime.Now;
double result = (later - earlier).TotalMilliseconds;

Answer 5

    public static Int64 GetDifferencesBetweenTwoDate(DateTime newDate, DateTime oldDate, string type)
    {
        var span = newDate - oldDate;
        switch (type)
        {
            case "tt": return (int)span.Ticks;
            case "ms": return (int)span.TotalMilliseconds;
            case "ss": return (int)span.TotalSeconds;
            case "mm": return (int)span.TotalMinutes;
            case "hh": return (int)span.TotalHours;
            case "dd": return (int)span.TotalDays;
        }
        return 0;
    }