使用c＃将数据更新到msaccess数据库时UPDATE语句中出现语法错误

Question

**我想更改MS访问数据库中的密码但它无法正常工作＆amp;它在UPDATE语句中显示语法错误，请帮助我的朋友。数据库包含Roll表，名称，电子邮件，密码文件**

using System;
using System.Data;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.OleDb;

namespace ConsoleApplication1
{
    public class DBConnect
    {
        private static OleDbConnection NewCon;
        private static string conStr = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=H:\MY FILES\PL\LIBRARY.mdb";

        public static OleDbConnection getConnection()
        {
            NewCon = new OleDbConnection(conStr);
            return NewCon;

        }
        public DBConnect()
        {

        }

    }


    class Program
    {

        static void Main(string[] args)
        {
            OleDbConnection dbConnection;


            dbConnection = DBConnect.getConnection();
            if (dbConnection.State.ToString() == "Closed")
            {
                dbConnection.Open();
            }

            OleDbCommand command = new OleDbCommand("UPDATE Register SET Password=@Npwd WHERE Roll=@Roll AND Password=@Cpwd);", dbConnection);
            command.Parameters.AddWithValue("@Roll", "12cs0144");
            command.Parameters.AddWithValue("@Cpwd", "434");
            command.Parameters.AddWithValue("@Npwd", "123");
            int temp = command.ExecuteNonQuery();
            if (temp != 0)
            {
                Console.WriteLine("True");
            }
            dbConnection.Close();

            Console.ReadLine();
    }}}