Question

我想从时间格式列表中找到最长时间，它不完全是TimeSpan所以解析它无济于事。请提出解决方案。

var duration = new List<string>() { "116:48:28", "110:36:28", "16:30:28"};
var maxts = duration.Max(x => TimeSpan.Parse(x));

Answer 1

你可以试试这个。它会起作用，你不会有像＃'s 1：70：10＆＃34; ......

duration.Select(d=>d.Replace(":", string.Empty)).Select(int.Parse).OrderBy(s=>s)

或者，获取最大时间戳的值：

duration.Select(d => new {Text =d, Val = int.Parse(d.Replace(":", string.Empty))})
        .OrderByDescending(x=>x.Val)
        .First()
        .Text;

Answer 2

您可以使用var sortedDuraion = duration .OrderByDescending((s) => Convert.ToInt32(s.Split(':')[0])) .ThenByDescending((s) => Convert.ToInt32(s.Split(':')[1])) .ThenByDescending((s) => Convert.ToInt32(s.Split(':')[2])); var max = sortedDuration.ElementAt(0);：

string

您也可以将此int解析为":"（删除int）并订购var sortedDuration = duration.OrderByDescending((s) => Convert.ToInt32(s.Replace(":", String.Empty))); var max = sortedDuration.ElementAt(0);值：

HTTParty

Answer 3

你可以这样尝试

var duration = new List<string>() { "116:48:28", "110:36:28", "16:30:28" };
List<TimeSpan> lst = new List<TimeSpan>();
foreach (var item in duration)
{
    string[] data=item.Split(new char[]{':'});
    lst.Add(new TimeSpan(int.Parse(data[0]),int.Parse(data[1]),int.Parse(data[2])));
}
var max = lst.Max();

Answer 4

您可以使用正则表达式：

internal static TimeSpan ParseSpecialTimespan(string toParse)
{
    string pattern = @"^(\d+):([0-5]?\d{1}):([0-5]?\d{1})$";

    var match = Regex.Match(toParse, pattern);
    if (!match.Success) throw new ArgumentException(@"The provided string is not valid...");
    int hours = int.Parse(match.Groups[1].ToString());
    int minutes = int.Parse(match.Groups[2].ToString());
    int seconds = int.Parse(match.Groups[3].ToString());
    TimeSpan t = new TimeSpan(hours, minutes, seconds);
    return t;
}

以下是如何使用的：

var duration = new List<string>() { "116:48:28", "110:36:28", "16:30:28" };
string largestInput = "";
TimeSpan largestTimespan = new TimeSpan(0);

foreach (string d in duration)
{
    TimeSpan parse = ParseSpecialTimespan(d);

    if (parse > largestTimespan)
    {
        largestTimespan = parse;
        largestInput = d;
    }
}

System.Diagnostics.Debug.Print(@"Largest timespan is ""{0}"" from input ""{1}"".", largestTimespan.ToString(), largestInput);

从字符串列表中查找最长时间

4 个答案: