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hhh理现对交通信号灯进行管理,车辆放行3分钟后,车行道黄灯闪烁5秒钟,以警示车辆将切换红绿灯。此时人行横道仍维持红灯点亮。车行道的黄灯闪烁5秒钟后,转为人行横...
hhh理现对交通信号灯进行管理,车辆放行3分钟后,车行道黄灯闪烁5秒钟,以警示车辆将切换红绿灯。此时人行横道仍维持红灯点亮。车行道的黄灯闪烁5秒钟后,转为人行横道行人放行1分钟,然后再转为车行道车辆放行3分钟。如此循环重复。 用发光二极管模拟信号灯,8255A实现对信号灯的控制(所用端口自定),8253的计数器2定时向实验系统主片8259A的IRQ7请求中断,以实现3分钟,5秒钟和1分钟的定时。 实验系统8253计数器2的CLK2可接OPCLK,频率为1.19318MHZ,GATE2已接+5V,定时可采用软硬件结合相结合的方式-HHH Jimmy is right for traffic signal management, vehicle clearance three minutes later, the driveway five seconds flashing yellow light to warn vehicles will switch traffic lights. This sees the red light remains lit. The flashing yellow light carriageway five seconds later, the pedestrian crossings to release a minute and then released into driveway vehicles for three minutes. So the cycle to repeat. Using light-emitting diode signal simulation, 8255A right signals control (used to set the port), the 8253 regular counter to the two experimental system of the main unit there 8259A interrupt request, to achieve 3 minutes, 5 seconds and one minute timing. Experimental System to the 8253 counter two OPCLK CLK2 access, frequen
- 2022-03-03 08:29:38下载
- 积分:1
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rapid shutdown before WIN2000 shutdown to a few minutes, now have this procedure...
快速关机,以前win2000关机要几分钟,现在有了这个程序,就可以快速关机了。-rapid shutdown before WIN2000 shutdown to a few minutes, now have this procedure can be a rapid shutdown.
- 2023-09-08 17:20:03下载
- 积分:1
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treeview & db
通过删除节点,可以删除相映的记录,包含带子节点的节点(by removing nodes can be removed form a contrast to the record, including scallops of nodes)
- 2005-06-22 08:55:48下载
- 积分:1
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以树型结构显示出文件以及子目录的程序,运行通过.
以树型结构显示出文件以及子目录的程序,运行通过.-a tree structure shown documents and subdirectory, the running through.
- 2023-05-29 14:10:02下载
- 积分:1
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无解压码,随便下载11.如何在列表框中自动装载磁盘文件列表?.rar 11.如何在列表框中自动装载磁盘文件列表?.rar...
无解压码,随便下载11.如何在列表框中自动装载磁盘文件列表?.rar 11.如何在列表框中自动装载磁盘文件列表?.rar -without extracting yards casually download 11. How listbox automatically loading disk document lists? . Rar 11. How listbox automatically loading disk document lists? . Rar 11. How listbox automatically loading disk document lists? . Rar
- 2022-03-24 01:00:12下载
- 积分:1
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本例详细介绍了treeview控件的应用和扩展,可以随心所欲的制作自己喜爱的效果,是一个不可多得的例子....
本例详细介绍了treeview控件的应用和扩展,可以随心所欲的制作自己喜爱的效果,是一个不可多得的例子.-details of the cases treeview control of the use and expansion of production reinstate their favorite effect is a rare example.
- 2022-08-20 06:37:27下载
- 积分:1
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VC ,treeview与数据库的连接,能对数据库进行操作
VC ,treeview与数据库的连接,能对数据库进行操作-VC, treeview and database connections, the database will operate
- 2022-12-14 06:15:03下载
- 积分:1
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few eyes on the positioning of cnki download the articles, have seen flowing ins...
几篇关于眼睛定位的cnki上下载的文章,都看过,msdn里面关于vfw的内容的翻译 对vfw编程非常有用中文文章里相对比较-few eyes on the positioning of cnki download the articles, have seen flowing inside the VFW on the translation of VFW very useful programming Chinese essays relatively
- 2023-09-02 16:20:04下载
- 积分:1
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网页里的tree,可以通过javascript生成树,方便简单
网页里的tree,可以通过javascript生成树,方便简单-tree"s website, through javascript spanning tree, easy to use
- 2022-03-06 00:43:32下载
- 积分:1
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treeview
详细介绍TREEview的使用方法,完整可用的VC++源代码。(Detailed introduced the the TreeView use of methods, complete and available for VC++ source code.)
- 2013-05-18 16:14:05下载
- 积分:1