获取或设置嵌入式OLE对象的类标识符
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可能的使用场景
Aspose.Cells for Python via .NET 提供了 OleObject.class_identifier 属性，可以用来获取或设置嵌入的 Ole 对象的类标识符。Ole 对象类标识符实际上是 GUID，也就是全局唯一标识符。GUID 长度始终为 16 字节，因此类标识符也是 16 字节。它们通常在 Windows 注册表内可找到，为宿主应用提供关于如何打开包含各种嵌入资源的嵌入式 Ole 对象的信息。
获取或设置嵌入的OLE对象的类标识符
以下截图显示了从包含嵌入式PowerPoint OLE对象的示例Excel文件中读取的OLE对象类标识符即GUID。
示例代码
请参见以下使用示例Excel文件执行的样本代码和其控制台输出，该输出打印了OLE对象的类标识符即GUID。打印出的GUID与截图中显示的完全相同。
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| from aspose.cells import Workbook | |
| from uuid import uuid4 | |
| # For complete examples and data files, please go to https:# github.com/aspose-cells/Aspose.Cells-for-.NET | |
| # The path to the documents directory. | |
| dataDir = RunExamples.GetDataDir(".") | |
| # Load your sample workbook which contains embedded PowerPoint ole object | |
| wb = Workbook(dataDir + "sample.xls") | |
| # Access its first worksheet | |
| ws = wb.worksheets[0] | |
| # Access first ole object inside the worksheet | |
| oleObj = ws.ole_objects[0] | |
| # Convert 16-bytes array into GUID | |
| guid = uuid4(oleObj.class_identifier) | |
| # Print the GUID | |
| print(str(guid).upper()) |
控制台输出
这是上述样本代码执行时与示例excel文件一起的控制台输出。
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