/// <summary>
/// 创建B+树
/// </summary>
/// <param name="treeFileStream">指定树文件的文件流</param>
/// <param name="blockFileStream">指定块文件的文件流</param>
/// <param name="keyLength">树允许的键的长度</param>
/// <param name="nodeCapacity">树允许的各子节点的最大容量</param>
/// <param name="blockSize">块大小</param>
/// <returns>B+树</returns>
public static BPlusTreeBytes Create(Stream treeFileStream, Stream blockFileStream, int keyLength, int nodeCapacity, int blockSize)
{
BPlusTreeLong tree = BPlusTreeLong.InitializeInStream(treeFileStream, (long)0, keyLength, nodeCapacity);
LinkedFile archive = LinkedFile.InitializeInStream(blockFileStream, (long)0, blockSize);
return(new BPlusTreeBytes(tree, archive));
}