考虑:
 string[] collection = new string[3]{"hi","hello","test"}; 
 string [] elements = new string [3];
 int index = 0;
 foreach(string anode in collection)
 {
   string[index++] = anode;
 }
考虑:
 string[] collection = new string[3]{"hi","hello","test"}; 
 string [] elements = new string [3];
 int index = 0;
 foreach(string anode in collection)
 {
   string[index++] = anode;
 }
https://stackoverflow.com/a/599373/1618257:
List<string> elements = new List<string>();
foreach(xmlnode anode in somecollection)
{
  elements.Add("string");
}