diff --git a/test/Program.cs b/test/Program.cs
index 460fb8d..4ab0aa4 100755
--- a/test/Program.cs
+++ b/test/Program.cs
@@ -5,78 +5,78 @@
 
 namespace test
 {
-    class Program
-    {
-        static void Main(string[] args)
-        {
-            //建立SqlHelper对象（包含用户名、密码）
-            //SqlHelper sqlHelper = new SqlHelper("127.0.0.1", "TestDB", "sa", "12345678");
-            //建立SqlHelper对象（不包含用户名、密码）
-            SqlHelper sqlHelper = new SqlHelper("127.0.0.1", "TestDB");
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			//建立SqlHelper对象（包含用户名、密码）
+			//SqlHelper sqlHelper = new SqlHelper("127.0.0.1", "TestDB", "sa", "12345678");
+			//建立SqlHelper对象（不包含用户名、密码）
+			SqlHelper sqlHelper = new SqlHelper("127.0.0.1", "TestDB");
 
-            //通过表名获取数据表
-            DataTable stuTable = sqlHelper.GetTable("student", 50);
-            PrintTable(stuTable);
-            //通过sql语句获取数据表
-            DataTable stuTable2 = sqlHelper.GetTable("select * from student where sex=N'男'");
-            PrintTable(stuTable2);
+			//通过表名获取数据表
+			DataTable stuTable = sqlHelper.GetTable("student", 50);
+			PrintTable(stuTable);
+			//通过sql语句获取数据表
+			DataTable stuTable2 = sqlHelper.GetTable("select * from student where sex=N'男'");
+			PrintTable(stuTable2);
 
-            //按流的方式单向读取数据（使用SqlDataReader）
-            SqlDataReader sqlDataReader = sqlHelper.GetDataStream("select * from student where sex=N'男'");
-            while (sqlDataReader.Read())
-            {
+			//按流的方式单向读取数据（使用SqlDataReader）
+			SqlDataReader sqlDataReader = sqlHelper.GetDataStream("select * from student where sex=N'男'");
+			while (sqlDataReader.Read())
+			{
 				//获取指定字段的值
 				string id = sqlDataReader["sid"].ToString();
 				string name = sqlDataReader["name"].ToString();
 				string sex = sqlDataReader["sex"].ToString();
 				string score = sqlDataReader["score"].ToString();
 				Console.WriteLine(id + "\t" + name + "\t" + sex + "\t" + score);
-            }
+			}
 			sqlHelper.CloseConnection();
 
-            //执行一条SQL语句
-            sqlHelper.ExecuteSqlCommand("insert into student(sid,name,sex,score) values(102,'hong',N'女',78.5)");
-            DataTable stuTable3 = sqlHelper.GetTable("student", 50);
-            PrintTable(stuTable3);
+			//执行一条SQL语句
+			sqlHelper.ExecuteSqlCommand("insert into student(sid,name,sex,score) values(102,'hong',N'女',78.5)");
+			DataTable stuTable3 = sqlHelper.GetTable("student", 50);
+			PrintTable(stuTable3);
 
-            //添加数据到指定DataSet中（添加到一张表）
-            DataSet dataSet = new DataSet();
-            sqlHelper.AddDataToDataSet(dataSet, "select * from student", "student");
-            PrintTable(dataSet.Tables["student"]);
-            //添加数据到指定DataSet中（添加到多张表）
-            //DataSet dataSet = new DataSet();
-            //sqlHelper.AddDataToDataSet(dataSet, new List<string> { "select * from student", "select * from teacher" }, new List<string> { "student", "teacher" });
-            //PrintTable(dataSet.Tables["student"]);
-            //PrintTable(dataSet.Tables["teacher"]);
+			//添加数据到指定DataSet中（添加到一张表）
+			DataSet dataSet = new DataSet();
+			sqlHelper.AddDataToDataSet(dataSet, "select * from student", "student");
+			PrintTable(dataSet.Tables["student"]);
+			//添加数据到指定DataSet中（添加到多张表）
+			//DataSet dataSet = new DataSet();
+			//sqlHelper.AddDataToDataSet(dataSet, new List<string> { "select * from student", "select * from teacher" }, new List<string> { "student", "teacher" });
+			//PrintTable(dataSet.Tables["student"]);
+			//PrintTable(dataSet.Tables["teacher"]);
 
-            //修改student表的分数，批量提交对数据表进行的修改
-            DataTable tempTable = sqlHelper.GetTable("select * from student");
-            foreach (DataRow row in tempTable.Rows)
+			//修改student表的分数，批量提交对数据表进行的修改
+			DataTable tempTable = sqlHelper.GetTable("select * from student");
+			foreach (DataRow row in tempTable.Rows)
 				row["score"] = double.Parse(row["score"].ToString()) - 1;
-            sqlHelper.UpdateTable(tempTable, "select * from student");
+			sqlHelper.UpdateTable(tempTable, "select * from student");
 
-            //修改student表的分数，批量提交对数据表进行的修改
-            //DataSet dataSet = new DataSet();
-            //sqlHelper.AddDataToDataSet(dataSet, "select * from student", "student");
-            //foreach (DataRow row in dataSet.Tables["student"].Rows)
-            //    row["score"] = int.Parse(row["score"].ToString()) + 1;
-            //sqlHelper.UpdateTable(dataSet, "student", "select * from student");
-        }
+			//修改student表的分数，批量提交对数据表进行的修改
+			//DataSet dataSet = new DataSet();
+			//sqlHelper.AddDataToDataSet(dataSet, "select * from student", "student");
+			//foreach (DataRow row in dataSet.Tables["student"].Rows)
+			//    row["score"] = int.Parse(row["score"].ToString()) + 1;
+			//sqlHelper.UpdateTable(dataSet, "student", "select * from student");
+		}
 
-        /// <summary>
-        /// 打印数据表
-        /// </summary>
-        /// <param name="table">要打印的DataTable表</param>
-        public static void PrintTable(DataTable table)
-        {
-            foreach (DataRow row in table.Rows)
-            {
-                foreach (DataColumn column in table.Columns)
-                {
-                    Console.Write(row[column] + "\t");
-                }
-                Console.WriteLine();
-            }
-        }
-    }
+		/// <summary>
+		/// 打印数据表
+		/// </summary>
+		/// <param name="table">要打印的DataTable表</param>
+		public static void PrintTable(DataTable table)
+		{
+			foreach (DataRow row in table.Rows)
+			{
+				foreach (DataColumn column in table.Columns)
+				{
+					Console.Write(row[column] + "\t");
+				}
+				Console.WriteLine();
+			}
+		}
+	}
 }