这个问题的解决方法是直截了当的，而且幸运的是你必须实现一次。import java.util.*;
import org.w3c.dom.*;
public final class XmlUtil {
private XmlUtil(){}
public static List asList(NodeList n) {
return n.getLength()==0?
Collections.em
Creating the Node and NodeList Classes
A skip list, like a binary tree, is made up of a collection of
elements. Each element in a skip list has some data associated with
it—a height, and a collec
