使用Python将文件从AzureBlob存储中下载到本地目录

要使用Python下载Azure Blob存储中的文件到本地目录，我们可以使用Azure Storage Blob库来实现。以下是一个使用例子：

首先，确保已经安装了Azure Storage Blob库。可以使用以下命令安装：

pip install azure-storage-blob

接下来，导入所需的库：

from azure.storage.blob import BlobServiceClient

创建一个Azure Blob服务客户端，需要传入存储账户的连接字符串：

connection_string = "DefaultEndpointsProtocol=https;AccountName=<account_name>;AccountKey=<account_key>;EndpointSuffix=core.windows.net"
blob_service_client = BlobServiceClient.from_connection_string(connection_string)

接下来，指定要下载的Blob容器和Blob文件的名称：

container_name = "<container_name>"
blob_name = "<blob_name>"

获取容器和Blob对象：

container_client = blob_service_client.get_container_client(container_name)
blob_client = container_client.get_blob_client(blob_name)

指定要将文件下载到的本地目录：

local_directory = "<local_directory>"

使用Blob客户端将Blob文件下载到本地目录：

with open(local_directory + blob_name, "wb") as f:
    data = blob_client.download_blob()
    data.readinto(f)

下载完成后，文件将保存在本地目录中。完整的代码如下所示：

from azure.storage.blob import BlobServiceClient

connection_string = "DefaultEndpointsProtocol=https;AccountName=<account_name>;AccountKey=<account_key>;EndpointSuffix=core.windows.net"
blob_service_client = BlobServiceClient.from_connection_string(connection_string)

container_name = "<container_name>"
blob_name = "<blob_name>"

container_client = blob_service_client.get_container_client(container_name)
blob_client = container_client.get_blob_client(blob_name)

local_directory = "<local_directory>"

with open(local_directory + blob_name, "wb") as f:
    data = blob_client.download_blob()
    data.readinto(f)

将上述代码中的<account_name>、<account_key>、<container_name>、<blob_name>和<local_directory>替换为实际的值。

这样，就可以使用Python将文件从Azure Blob存储中下载到本地目录了。