C# 字典 ArrayList 计数

Question

是否有一种简单的方法来计算特定字典键值的值？

static void Main()
{
    Dictionary<string, ArrayList> SpecTimes = new Dictionary<string, ArrayList>;
    ArrayList times = new ArrayList();
    string count = "";

    times.Add = "000.00.00";
    times.Add = "000.00.00";
    times.Add = "000.00.00";

   string spec = "A101";

   SpecTimes.Add(spec,times);

   count = SpecTimes[spec].values.count;
}

Answer 1

我还没有测试过，但这应该接近您的需要。

static void Main()
{
  Dictionary<string, List<string>> SpecTimes = new Dictionary<string, List<string>>();
  List<string> times = new List<string>();
  int count = 0;

  times.Add = "000.00.00";
  times.Add = "000.00.00";
  times.Add = "000.00.00";

  string spec = "A101";

  SpecTimes.Add(spec,times);

  // check to make sure the key exists, otherwise you'll get an exception.
  if(SpecTimes.ContainsKey(spec))
  {
      count = SpecTimes[spec].Count;
  }
}