composite USB devices expose multiple functions to a host by using multiple interfaces. A compound device is an external hub that is combined with other devices. Compound devices appear to the host as a hub with one or more non-removable devices that are connected to the hub’s ports. 对于compound device，它内置的hub和其它设备都会有各自的device address， 而compoiste device只有一个device address。实...
这是Oracle官方文档上的一个语句 CREATE TABLE emp (deptno NUMBER, empname VARCHAR(32), grade NUMBER) PARTITION BY RANGE(deptno) SUBPARTITION BY HASH(empname) SUBPARTITIONS 8 STORE IN (ts1, ts3, ts5, ts7) (PARTITION p1 VALUES LESS THAN (1000), PARTITION p2 VALUES LESS THAN (2000) STORE IN (ts2, ts4, ts6, ts8), PARTITION p3 VALUES LESS THAN (MAXVALUE) (S...
如：假设composite里包含composite1、composite2,composite1上面有一个按钮button1， 实现的效果是：首先composite1适应一个button的大小，button1有个事件，单击时在composite2显示/隐藏，composite2显示时composite1缩小以显示composite2，composite2隐藏时composite1就要自动放大充满整个composite. 实现如下： 把composite1与composite2放在composite中 //composite1 composite composite1= new composite(composite, SW...
请教各位高手，举例如下： 需要一个composite类型的数据窗口来反映两个数据窗口Da,Db的数据变化，Da一般一条数据，Db对应于Da的一个主键来检索符合的数据，想请问：如何才能把数据显示出来？ 多谢。
