<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[wulingting的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/wulingting</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; wulingting]]></copyright><item><title><![CDATA[delphi 7与S7-200PLC之间用PPI通讯协议实现数据的读写源代码]]></title><link>https://blog.youkuaiyun.com/wulingting/article/details/2390490</link><guid>https://blog.youkuaiyun.com/wulingting/article/details/2390490</guid><author>wulingting</author><pubDate>Mon, 05 May 2008 08:58:00 +0800</pubDate><description><![CDATA[通过对串口的监听，终于找到了PPI通讯协议对S7-200PLC数据读取的格式。下面是DELPHI  7的源代码。vari,j,fcs_read,fcs_write:integer;nbyte,readdata_byte,writedata_byte:array of  byte;procedure Tshenchanform.FormCreate(Sender: TObject);]]></description><category></category></item><item><title><![CDATA[delphi程序问题]]></title><link>https://blog.youkuaiyun.com/wulingting/article/details/1880504</link><guid>https://blog.youkuaiyun.com/wulingting/article/details/1880504</guid><author>wulingting</author><pubDate>Mon, 12 Nov 2007 15:45:00 +0800</pubDate><description><![CDATA[   在delphi中如果实现A调用B和C，同时B又调用C，是否会死机。问各位大侠。。。。。。。 ]]></description><category></category></item><item><title><![CDATA[DELPHI访问PLC输出口]]></title><link>https://blog.youkuaiyun.com/wulingting/article/details/1574678</link><guid>https://blog.youkuaiyun.com/wulingting/article/details/1574678</guid><author>wulingting</author><pubDate>Sun, 22 Apr 2007 16:03:00 +0800</pubDate><description><![CDATA[procedure TForm1.Timer1Timer(Sender: TObject);var  ibyteindex:integer;  ibitindex:integer;  errreadoutputpoint:integer;  vdata:olevariant;  datatype:pointdatatypeconstants;  i,j,k,l:integer;  begin  k]]></description><category></category></item><item><title><![CDATA[delphi 对 access 数据库的操作如何完成？]]></title><link>https://blog.youkuaiyun.com/wulingting/article/details/486177</link><guid>https://blog.youkuaiyun.com/wulingting/article/details/486177</guid><author>wulingting</author><pubDate>Wed, 21 Sep 2005 09:35:00 +0800</pubDate><description><![CDATA[我现利用delphi 的ADO对ACCESS数据库进行操作，但是能够与其进行连接，但是就是不晓得如何对期进行操作，我是新手，请高手赤脚。。。。。]]></description><category></category></item></channel></rss>