doc.core_properties.subject 方法

`doc.core_properties.subject` 方法用于获取或设置文档的主题。在 Microsoft Office 文档中，主题是指文档的主题或概述。该方法返回一个字符串，表示文档的主题。如果文档没有设置主题，则返回空字符串。如果要设置文档的主题，可以将一个字符串作为参数传递给该方法。例如，以下代码将文档的主题设置为 "My Document"：

from docx import Document

doc = Document()
doc.core_properties.subject = "My Document"

在此示例中，我们创建了一个新的空白文档，并将其主题设置为 "My Document"。要注意的是，必须在保存文档之前设置文档的主题，否则更改将不会生效。

相关问题

doc.core_properties.keywords方法

`doc.core_properties.keywords` 是一个属性，用于访问文档对象的关键字属性。这个属性返回一个字符串，其中包含逗号分隔的关键字列表。

以下是使用 `doc.core_properties.keywords` 属性的示例代码：

from docx import Document

# 创建一个空的 Word 文档对象
document = Document()

# 设置文档的关键词属性
document.core_properties.keywords = 'Python, Docx, Word'

# 获取文档的关键词属性
keywords = document.core_properties.keywords

print(keywords) # 输出：Python, Docx, Word

在上面的代码中，我们首先创建了一个空的 Word 文档对象。然后，使用 `document.core_properties.keywords` 属性设置文档的关键词属性为“Python, Docx, Word”。最后，我们获取文档的关键词属性，并将其输出到控制台。

请简化sql: select d.document_id , d.workflow_order_id,e.handle_result, d.workflow_id ,d.process_id -- ,e.workflow_id as workflow_id2 from (select doc.document_id , wo.workflow_order_id,wo.workflow_id,doc.process_id from document doc inner join workflow_order wo on doc.document_id = wo.object_id where doc.document_id = 1476093058673315842 and wo.workflow_id in( SELECT CASE WHEN process_id IN (1, 2) THEN 1470275488528011266 WHEN process_id IN (3, 4) THEN 1470275525786034178 END AS workflow_id FROM document WHERE document_id = 1476093058673315842 ) and wo.status != 3 )as d inner join (select wo.workflow_order_id,wr.handle_result,wr.workflow_id from workflow_record wr inner join workflow_order wo on wo.workflow_order_id = wr.workflow_order_id where wo.workflow_order_id in ( select wo.workflow_order_id from document doc inner join workflow_order wo on doc.document_id = wo.object_id where doc.document_id = 1476093058673315842 and wo.workflow_id in( SELECT CASE WHEN process_id IN (1, 2) THEN 1470275488528011266 WHEN process_id IN (3, 4) THEN 1470275525786034178 END AS workflow_id FROM document WHERE document_id = 1476093058673315842 ) and wo.status != 3 ) ) as e on d.workflow_order_id = e.workflow_order_id ;

简化后的SQL语句如下：

SELECT d.document_id, d.workflow_order_id, e.handle_result, d.workflow_id, d.process_id
FROM (
    SELECT doc.document_id, wo.workflow_order_id, wo.workflow_id, doc.process_id
    FROM document doc
    INNER JOIN workflow_order wo ON doc.document_id = wo.object_id
    WHERE doc.document_id = 1476093058673315842
    AND wo.workflow_id IN (
        SELECT CASE
            WHEN process_id IN (1, 2) THEN 1470275488528011266
            WHEN process_id IN (3, 4) THEN 1470275525786034178
        END AS workflow_id
        FROM document
        WHERE document_id = 1476093058673315842
    )
    AND wo.status != 3
) AS d
INNER JOIN (
    SELECT wo.workflow_order_id, wr.handle_result, wr.workflow_id
    FROM workflow_record wr
    INNER JOIN workflow_order wo ON wo.workflow_order_id = wr.workflow_order_id
    WHERE wo.workflow_order_id IN (
        SELECT wo.workflow_order_id
        FROM document doc
        INNER JOIN workflow_order wo ON doc.document_id = wo.object_id
        WHERE doc.document_id = 1476093058673315842
        AND wo.workflow_id IN (
            SELECT CASE
                WHEN process_id IN (1, 2) THEN 1470275488528011266
                WHEN process_id IN (3, 4) THEN 1470275525786034178
            END AS workflow_id
            FROM document
            WHERE document_id = 1476093058673315842
        )
        AND wo.status != 3
    )
) AS e ON d.workflow_order_id = e.workflow_order_id;