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ado.net中ExecuteReader总是报错
selectSQL = “Select * from Students“; selectSQL += “where ID=“ + DropDownList1.SelectedItem ;拼接后的sql语句 表名和where条件中间没有空格 从而导致sql语句错误引起的。。。 selectSQL = “Select * from Students “; selectSQL += “where ID=“ + DropDownList1.SelectedItem ;
