Microsoft.Jet.OLEDB.4.0 - 找不到提供程序或可能未安装提供程序

文章，并添加案例代码

找不到提供程序或可能未安装提供程序

regsvr32.exe "C:\Program Files (x86)\Common Files\System\Ole DB\msjetoledb40.dll"

csharp
using System;
using System.Data.OleDb;
class Program
{
    static void Main()
    {
        // 数据库连接字符串
        string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\path\\to\\database.mdb";
        // 创建连接对象
        using (OleDbConnection connection = new OleDbConnection(connectionString))
        {
            try
            {
                // 打开数据库连接
                connection.Open();
                // 创建命令对象
                OleDbCommand command = new OleDbCommand();
                command.Connection = connection;
                // 执行 SQL 查询
                command.CommandText = "SELECT * FROM TableName";
                OleDbDataReader reader = command.ExecuteReader();
                // 处理查询结果
                while (reader.Read())
                {
                    Console.WriteLine(reader["ColumnName"]);
                }
                // 关闭数据阅读器
                reader.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine("数据库操作发生错误：" + ex.Message);
            }
            finally
            {
                // 关闭数据库连接
                connection.Close();
            }
        }
    }
}