返回文档水印不透明性
这种方法没有任何参数
builder.CreateFile("docx")!varoDocuments=api.GetDocumentoDocument.InsertWatermark("Watermark", true)!varoSettingsssvarnOpaceity =oSettings.GetOobaceityvarolements=ODocument.GetEplement0odision.AddText ("Watermark不透明性:+nobuilder.SaveFile("docx", "GetOpacity.docx")!builder.CloseFile();