conn.Open?

VB+Access：
conn.ConnectionString = "Provider=Microsoft.Jet.OleDb.4.0;Persist Security Info=False;Data Source=mysouce;Initial Catalog=student"
conn.ConnectionTimeout = 10
conn.Open
▲▲▲▲▲（此处报错）
rs1.Open "SELECT 学生证号 FROM stu WHERE 学生证号 = " + Text7.Text, conn
Set Text1.DataSource = rs1
Text1.DataField = "学生证号"

rsT.open trySql,Conn rs.open exec,conn rs1.open sql1,conn,1,1 是什么意思 rs.open sql,conn,1,3，急！！！！！ rs.open sql,conn,1,3 rs.open sql,conn,3,2 rs.Open sql,conn,0,2,1 rs.Open strsql,conn,1,3问题？？？ conn.Open Application("strConn") rs_check.Open sqlCheck, conn, adOpenStatic, adLockOptimistic?