1、通过aposecad库，找到导入的dwg，所有布局里的，特定名字的块;获得这部分特定块的坐标（矩形）

PAPER_SIZES_MM = {
    "A4": {"landscape": (297, 210), "portrait": (210, 297)},
    "A3": {"landscape": (420, 297), "portrait": (297, 420)},
    "A2": {"landscape": (594, 420), "portrait": (420, 594)},
    "A1": {"landscape": (841, 594), "portrait": (594, 841)},
    "A0": {"landscape": (1189, 841), "portrait": (841, 1189)},
}

PRINTABLE_BLOCKS = {
    "A$C2EB80DB8": ("A1", "portrait"),
    "A$C1CC9093B": ("A1", "landscape"),
    "A$C6D564680": ("A2", "portrait"),
    "新块": ("A3", "landscape"),
    "新块1": ("A4", "portrait"),

2、利用坐标打印功能，对以上块进行打印，并按照顺序命名
https://docs.aspose.com/cad/zh/java/developer-guide/autocad-drawings/dwg-drawings/convert-dwg-to-dwf-with-coordinatesconvert-dwg-to-pdf-with-coordinates/#%E5%A6%82%E4%BD%95%E5%B0%86-dwg-%E8%BD%AC%E6%8D%A2%E4%B8%BA%E5%B8%A6%E5%9D%90%E6%A0%87%E7%9A%84-pdf