谁能帮我看看！

SqlConnection conn = new SqlConnection("server=localhost;pwd = sun,user id ='sa',database = test,Integrated Security=SSPI");
                    
                conn.Open();

                SqlCommand cmd = new SqlCommand();

                = "INSERT INTO test(city,tq,wd) VALUES ('qq','" + YQ + "','" + WD + "')";

                cmd.Connection = conn;

                cmd.ExecuteNonQuery();

                MessageBox.Show("数据添加成功!");

                conn.Close();