public void Datebase(string Input, string Process){string querystring = "INSERT INTO Cal (Input, Process) values ('" + Input + "','" + Process + "')";//SQL语句 try { using (SqlConnection obj = new SqlConnection("Data Source=.;Initial Catalog=Calculator;Integrated Security=True")){ SqlCommand Cal = new SqlCommand(querystring, obj); Cal.Connection.Open(); Cal.ExecuteNonQuery(); }} catch (SqlException e) { }}。上面的程序我想连接数据库,然后再表Cal中插入数据。但是怎么插都插不进,还出现了上述情况,求高手解答,不胜感激。急急急......