小编Ala*_*lan的帖子

有没有办法迭代枚举或检索其在枚举列表中的位置.我有以下示例代码.

    private static void Main(string[] args)
    {
        DateTime sinceDateTime;
        Counters counter = new Counters();

        // Iterate through time periods
        foreach (TimePeriodsToTest testTimePeriod in Enum.GetValues(typeof(TimePeriodsToTest)))
        {
            // e.g. DateTime lastYear = DateTime.Now.AddDays(-365);
            sinceDateTime = DateTime.Now.AddDays((double)testTimePeriod);
            var fileCount =
                Directory.EnumerateFiles("c:\\Temp\\")
                    .Count(path => File.GetCreationTime(path).Date > sinceDateTime);

            Console.WriteLine("Files since " + -(double)testTimePeriod + " days ago is : " + fileCount);
            // counter.TimePeriodCount[testTimePeriod] = fileCount;
        }
    }

    public enum TimePeriodsToTest
    {
        LastDay = -1,
        LastWeek = -7,
        LastMonth = -28,
        LastYear = -365
    } …