Sq| Command cmd= new Sq| Commando;∥创建连接对象 cmd connection=conn;∥连接属性 cmd commandtext=" select* from users”;∥命令文本属性 Sqlcommand cmd=conn. CreateCommando cmd. CommandE=“se|ect* from users”;SqlCommand cmd=conn.CreateCommand(); cmd.CommandText=“select * from users”; SqlCommand cmd=new SqlCommand(); //创建连接对象 cmd.Connection=conn; //连接属性 cmd.CommandText=”select * from users”; //命令文本属性