C# Excel导入sql server 网上找的代码报错，

C# code

using System;   using System.Data;   using System.Windows.Forms;   using System.Data.OleDb;   namespace WindowsApplication2   {       public partial class Form1 : Form       {           public Form1()           {               InitializeComponent();           }             private void button1_Click(object sender, EventArgs e)           {               //测试，将excel中的sheet1导入到sqlserver中               string connString = "server=localhost;uid=sa;pwd=sqlgis;database=master";               System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();               if (fd.ShowDialog() == DialogResult.OK)               {                   TransferData(fd.FileName, "sheet1", connString);               }           }             public void TransferData(string excelFile, string sheetName, string connectionString)           {               DataSet ds = new DataSet();               try              {                   //获取全部数据                   string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + excelFile + ";" + "Extended Properties=Excel 8.0;";                   OleDbConnection conn = new OleDbConnection(strConn);                   conn.Open();                   string strExcel = "";                   OleDbDataAdapter myCommand = null;                   strExcel = string.Format("select * from [{0}$]", sheetName);                   myCommand = new OleDbDataAdapter(strExcel, strConn);                   myCommand.Fill(ds, sheetName);                     //如果目标表不存在则创建                   string strSql = string.Format("if object_id('{0}') is null create table {0}(", sheetName);                   foreach (System.Data.DataColumn c in ds.Tables[0].Columns)                   {                       strSql += string.Format("[{0}] varchar(255),", c.ColumnName);                   }                   strSql = strSql.Trim(',') + ")";                     using (System.Data.SqlClient.SqlConnection sqlconn = new System.Data.SqlClient.SqlConnection(connectionString))                   {                       sqlconn.Open();                       System.Data.SqlClient.SqlCommand command = sqlconn.CreateCommand();                       command.CommandText = strSql;                       command.ExecuteNonQuery();                       sqlconn.Close();                   }                   //用bcp导入数据                   using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connectionString))                   {                       bcp.SqlRowsCopied += new System.Data.SqlClient.SqlRowsCopiedEventHandler(bcp_SqlRowsCopied);                       bcp.BatchSize = 100;//每次传输的行数                       bcp.NotifyAfter = 100;//进度提示的行数                       bcp.DestinationTableName = sheetName;//目标表                       bcp.WriteToServer(ds.Tables[0]);                   }               }               catch (Exception ex)               {                   System.Windows.Forms.MessageBox.Show(ex.Message);               }         }             //进度显示           void bcp_SqlRowsCopied(object sender, System.Data.SqlClient.SqlRowsCopiedEventArgs e)           {               this.Text = e.RowsCopied.ToString();               this.Update();           }      }   }  

运行后 提示： & 附近语法错误！ 怎么回事？

[解决办法]
string strSql = string.Format("if object_id('{0}') is null create table {0}(", sheetName);

那是啥东东？
[解决办法]
没有这&apos吧