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求助,怎么修改以下python代码,图片命名跟着数据驱动页面设置的页面名称作为图片的名字
>>> mxd = arcpy.mapping.MapDocument("CURRENT")
...
... for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1):
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... mxd.dataDrivenPages.currentPageID = pageNum
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... arcpy.mapping.ExportToJPEG(mxd, r"D:\ArcGIS\a" + str(pageNum) + ".jpg",resolution = 250)
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... del mxd
...
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