SqliteHelper封装
public static class SqliteHelper { private static string connStr = ConfigurationManager.ConnectionStrings["sql"].ConnectionString; public static int ExecuteNonQuery(string sql, params SqlParameter[] ps) { using (SqlConnection conn = new SqlConnection(connStr)) { #region SqlConnection和SqlCommond连接 SqlCommand cmd = new SqlCommand(sql, conn); //SqlCommand cmd = conn.CreateCommand(); //cmd.CommandText = sql; #endregion cmd.Parameters.AddRange(ps); conn.Open(); return cmd.ExecuteNonQuery(); } } public static object ExecuteScalar(string sql, params SqlParameter[] ps) { using (SqlConnection conn =