参考来源https://www.autodesk.com.cn/support/technical/article/caas/sfdcarticles/sfdcarticles/CHS/drawing-version-codes-for-autocad.html版本号MC0.0-DWGRelease1.1AC1.2-DWGR1.2AC1.4-DWGR1.4AC1.50-DWGRelease2.0AC2.10-DWGRelease2.10AC1002