表a是父表,表b是子表,没有单向和双向
dim dr as datarow
Dim drs As List(Of DataRow)
drs = datatables("表a").find(" mingcheng = '" & str & "'")
for each dr drs
a(I) = dr(“单价”)
b(I) = dr(“公司名称”)
i = I+1
next
“公司名称”是表b的列,这样写可以吗?