Dictionary<string,int> NewLengths = new Dictionary<string,int>();
            for (int n = 0; n < tableArray.Length - 1; n++)
            {
                for (int u = 0; u < TableLengths.Count; u++)
                {
                    if (TableLengths[u].Name == tableArray[n])
                    {
                        NewLengths.Add(TableLengths[u].Name,TableLengths[u].Length);
                    }
                }
            }

            string[] itemList =new string[] { "x=10", "y=5", "k=4", "r=9" };
            int flag = 1;

            int i, j;

            int itemCount = itemList.Length;

            string itemTemp;

            for (i = 1; i < itemCount && flag == 1; i++)
            {
                flag = 0;

                for (j = 0; j < itemCount - i; j++)
                {
                    string itemfore = itemList[j];

                    int countfore = Convert.ToInt32(itemfore.Substring(itemfore.IndexOf('=') + 1, itemfore.Length - (itemfore.IndexOf('=') + 1)));

                    string itemback = itemList[j + 1];

                    int countback = Convert.ToInt32(itemback.Substring(itemback.IndexOf('=') + 1, itemback.Length - (itemback.IndexOf('=') + 1)));

                    if (countfore < countback)
                    {
                        flag = 1;

                        itemTemp = itemList[j];

                        itemList[j] = itemList[j + 1];

                        itemList[j + 1] = itemTemp;
                    }
                }
            }
            return itemList;
        }

------解决方案--------------------

放到List里，用List.Sort排序，效率最高，

------解决方案--------------------
字典无序，现排即可....

NewLengths.OrderBy(o=>o.Value)

如果集合很大，你应该用其他数据结构...

------解决方案--------------------
C# code


class Program
    {
        static int keySelector(KeyValuePair<string, int> entry)
        {
            return entry.Value;
        }

        static void Main()
        {
            Dictionary<string, int> vals = new Dictionary<string, int>();
            vals.Add("asp.net", 3);
            vals.Add("vb.net", 2);
            vals.Add("html5", 1);

            IOrderedEnumerable<KeyValuePair<string, int>> result = vals.OrderBy(keySelector);

            foreach (var item in result)
                Console.WriteLine("{0}:{1}", item.Key, item.Value);

        }
    }