摘要：
1 package Test; 2 3 public class Demo9 { 4 public static void main(String[] args) { 5 TestSync2 tt = new TestSync2(); 6 7 // 8 new Thread(tt).start(); 9 new Thread(tt).start();10 new Thread(tt).start();11 new Thread(tt).start();12 }13 14 }15 class TestSync2 impleme... 阅读全文