Dim dt As DataTable = DataTables("TableA")
Dim conStr As String = "server=192.168.0.100,1433;uid=sa;pwd=Aa123456;database=ceshi2023"
Dim tran As System.Data.SqlClient.SqlTransaction
Dim conn As New System.Data.SqlClient.SqlConnection(conStr)
Try
Dim st As Date = Date.Now '计算耗时
conn.Open() '执行到这里会报错
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[此贴子已经被作者于2023/9/21 14:42:00编辑过]