List<string> strs = new List<string>();
    foreach (string s in myWords)
    {
        if(! string.IsNullOrEmpty(s) ) strs.Add(s);
    }
    string[] result = strs.ToArray();

------解决方案--------------------
string[] ss = new string[5] { "ss","55",string.Empty,"ee",string.Empty};
           foreach(string s in ss)
           {
               ArrayList h = new ArrayList();
               if (s != string.Empty)
               {
                   h.Add(s);
                   foreach (string m in h)
                   {
                       MessageBox.Show(m);
                   }
  
               }
           }
仅供参考!

------解决方案--------------------
List<string> strs = new List<string>();
   foreach (string s in myWords)
   {
       if(! string.IsNullOrEmpty(s) ) strs.Add(s);
   }
   string[] result = strs.ToArray();

这样就行