摘要:
--1、查询“1001”课程比“1002”课程成绩高的所有学生的学号;select a.S# from (select S#,score from sc where C#=1001) a, (select S#,score from sc where C# = 1002) b where a.sco 阅读全文
摘要:
线程类: //继承线程类,重写run方法 public class MyThread extends Thread{ public void run(){ for (int i = 0; i < 100; i++) { System.out.println("i="+i); } } } 测试类: / 阅读全文