如何重构重复的IDbConnection.open\close？

public class DbConnectionPool
{
    private Queue<IDbConnection> connectionPool;

    public DbConnectionPool(int initialSize)
    {
        connectionPool = new Queue<IDbConnection>();
        for (int i = 0; i < initialSize; i++)
        {
            connectionPool.Enqueue(CreateNewConnection());
        }
    }

    public IDbConnection GetConnection()
    {
        if (connectionPool.Count > 0)
        {
            return connectionPool.Dequeue();
        }
        else
        {
            return CreateNewConnection();
        }
    }

    public void ReleaseConnection(IDbConnection connection)
    {
        connectionPool.Enqueue(connection);
    }

    private IDbConnection CreateNewConnection()
    {
        IDbConnection connection = new SqlConnection("connectionString"); // 根据实际情况选择合适的数据库连接对象
        connection.Open();
        return connection;
    }
}

// 在使用的地方
DbConnectionPool connectionPool = new DbConnectionPool(10); // 初始化连接池，指定初始连接数

// 获取连接
IDbConnection connection = connectionPool.GetConnection();
// 使用连接进行数据库操作

// 释放连接
connectionPool.ReleaseConnection(connection);