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package test; /** * 自定义一个LinkList * @author YU * */ public class MyLinkedList <E> { private Node first; private Node last; private int size; int size() { //返回链表长度 return size; } ...

package jdbc; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.SQLException; import java.sql.Savepoint; /** *测试事务中设置中间点 setSavepoint(...