SqlConnection MyConnection;
SqlCommand MyCommand;
String ConnStr;
MyConnection = new SqlConnection("serve(local);database=ss;Trusted_Connection=SSPI");
MyConnection.Open();
ConnStr = "Select address From user Where username='" + Session["id"].ToString() +"'";
MyCommand = new SqlCommand(ConnStr, MyConnection);
SqlDataReader reader = MyCommand.ExecuteReader();
其中user是一个表，总是报错说user附近有错误，
麻烦给看看

ConnStr = "Select address From [user] Where username='" + Session["id"].ToString() +"'";

user 是系统莫认名，你改一下你的表名就行了，，

加上 [] 就可以了~~