月黑风高夜，挑灯读书时

摘要： 先看一段代码片断： string sql1="select * from table1 where id='@id'"; //1string sql2="select * from table1 where id='?'"; //2 OleDbCommnad oleComm=new OleDbCommand(sql1,connect);//connect为or... 阅读全文