dim objRs as New Recordset
dim objCn as New connection
dim strSql as string
objCn.ConnectionString="fileDsn=student.dsn;User_Id=sa;PassWord=123"
objcn.open
strSql="SELECT * FROM Student_info"
objRs.Open strSql ,objCn,adOpenKeyset, adLockOptimistic
'在这判断，若为空则告知用户并退出该模块操作就行了
if objRS.RecordsetCount=0 then
msgbox "学籍信息不存在，请补充后在操作！"
objRs.Close
Set objRs=Nothing
exit sub '这一步可别忘了，要不然还得报错，原因是依旧执行了以后的操作
end if (){
}