问在C#中将字符串解析为数组

EN

NameValueCollection values = HttpUtility.ParseQueryString("section[]=100&section[]=200&section[]=300&section[]=400");
string[] result = values["section[]"].Split(',');
// at this stage 
// result[0] = "100"
// result[1] = "200"
// result[2] = "300"
// result[3] = "400"

str.Split('&')
   .Select(s=>s.Split('=')
               .Skip(1)
               .FirstOrDefault()).ToArray();

 str.Split(new[] { "section[]=" }, StringSplitOptions.RemoveEmptyEntries)
    .Select(s => s.Replace("&", ""))
    .Select(Int32.Parse).ToArray();

        var items = new List<string>();
        foreach (Match item in Regex.Matches(str, @"section\[\]=(\d+)"))
            items.Add(item.Groups[1].Value);

        string s ="section[]=100&section[]=200&section[]=300&section[]=400";
        Regex r = new Regex(@"section\[\]=([0-9]+)(&|$)");

        List<int> v = new List<int>();

        Match m=r.Match(s);
        while (m.Success){
            v.Add(Int32.Parse(m.Groups[1].ToString()));
            m=m.NextMatch();
        }

        int[]result = v.ToArray();