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Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
DataGridView1.DataSource = ABC.CreateDataTable("select * from 语文")
End Sub
和 Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
using conn as new ABC.Dbconnect
conn.Open
DataGridView1.DataSource = Abc.CreateDataTable("select * from 语文", conn)
end using
End Sub
足以看出,两种接口的目标差别。
你在设计开发的过程中,始终要从目标出发(不管它是好还是坏)。失去目标的人只会抄袭,从思路上就能看出来。
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
DataGridView1.DataSource = ABC.CreateDataTable("select * from 语文"")
End Sub
先写出目标设计,然后再纠结什么类不类的。