以文本方式查看主题 - Foxtable(狐表) (http://foxtable.net/bbs/index.asp) -- 专家坐堂 (http://foxtable.net/bbs/list.asp?boardid=2) ---- [求助]后台计算 (http://foxtable.net/bbs/dispbbs.asp?boardid=2&id=150042) |
-- 作者:天一生水 -- 发布时间:2020/5/19 11:51:00 -- [求助]后台计算 老师好!下面这段需要加载后进行计算的代码,如果在后台进行,除了把GetValues改成SQLGetValues、把Select改为SQLSelect以外,还要修改什么地方? 谢谢! Dim codes As List (Of String) = DataTables("指数日线").GetValues("代码","","日期") For Each code As String In codes Dim drlist As List (Of DataRow) = DataTables("指数日线").Select("代码 = \'" & code & "\'") For i As Integer = 0 To drlist.Count - 1 If i = 0 Then drlist(i)("涨跌幅") = (drlist(i)("收盘价") - drlist(i)("开盘价")) / drlist(i)("开盘价") * 100% Else drlist(i)("涨跌幅") = (drlist(i)("收盘价") - drlist(i - 1)("收盘价")) / drlist(i - 1)("收盘价") * 100% End If Next Next |
-- 作者:有点蓝 -- 发布时间:2020/5/19 11:54:00 -- 添加保存代码:http://www.foxtable.com/webhelp/topics/2901.htm |