一个很简单的问题？？？？？？？？

Question

把If readrecordset.EOF Then
改为：If readrecordset.EOF and readrecordset.BOF Then

Answer 1

readrecordset.cursorlocation=3
记录集打开时加入

Answer 2

把If readrecordset.EOF 和 readrecordset.BOF 加到一块.

Answer 3

逻辑不清
先赋值
total3=0
if readrecordset.Fields(0)<>"" then
  total3=readrecordset.Fields(0)
end if
不就行了？

Answer 4

应该这样写：
'如果打开的记录集不为空则
if not (readrecordset.bof or readrecordset.eof ) then
    total3=readrecordset.Fields(0).value
else
    total3=0
end if
readrecordset.close
set readrecordset=nothing