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
加好友 
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Post By：2020/5/19 11:51:00 [只看该作者]
