如图，用挤出封闭的平面曲线命令拉伸实体，曲面会产生这种问题。
但是，如果用操作轴上的圆点快速拉伸，则不会出现这种问题
请在 Rhino 指令行执行 SystemInfo, 然后将弹出内容拷贝后完整粘贴回帖。
提醒：顺便请私信回复我一下你当前Rhino7的授权码给我。
Rhino 7 SR3 2021-2-22 (Rhino 7, 7.3.21053.23031, Git hash:master @ f8a40388712d9cf7edc68910e0415427bdefc64a)
License type: Corporate, 版本2021-02-22
License details: Stand-Alone
Windows 10.0.26100 SR0.0 or greater (Physical RAM: 16Gb)
Computer platform: LAPTOP - Plugged in [100% battery remaining]
Hybrid graphics configuration.
Primary display: Intel(R) UHD Graphics (Intel) Memory: 1GB, Driver date: 7-11-2023 (M-D-Y).
> Integrated graphics device with 4 adapter port(s)
- Windows Main Display is laptop’s integrated screen or built-in port
Primary OpenGL: NVIDIA GeForce RTX 4060 Laptop GPU (NVidia) Memory: 8GB, Driver date: 6-25-2024 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 556.12
> Integrated accelerated graphics device with 4 adapter port(s)
- Secondary monitor is laptop’s integrated screen or built-in port
OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High
Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 6-25-2024
Driver Version: 32.0.15.5612
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8188 MB
Rhino plugins that do not ship with Rhino
C:\Program Files\Common Files\McNeel\Rhinoceros\7.0\Plug-ins\KeyShot11RhinoPlugin (55124e8a-aa81-4be8-8e12-9f452c473970)\1.0.0.0\KeyShot11RhinoPlugin\Rhino 7\KeyShot11RhinoPlugin.rhp “KeyShot11RhinoPlugin” 1.0.0.0
D:\applications\Rhino 7\Plug-ins\XNurbs 5.0\XNurbsRhino.rhp “XNurbs”
Rhino plugins that ship with Rhino
D:\applications\Rhino 7\Plug-ins\SolidTools.rhp “SolidTools”
D:\applications\Rhino 7\Plug-ins\Commands.rhp “Commands” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\WebBrowser.rhp “WebBrowser”
D:\applications\Rhino 7\Plug-ins\rdk.rhp “Renderer Development Kit”
D:\applications\Rhino 7\Plug-ins\RhinoScript.rhp “RhinoScript”
D:\applications\Rhino 7\Plug-ins\IdleProcessor.rhp “IdleProcessor”
D:\applications\Rhino 7\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
D:\applications\Rhino 7\Plug-ins\NamedSnapshots.rhp “Snapshots”
D:\applications\Rhino 7\Plug-ins\Alerter.rhp “Alerter”
D:\applications\Rhino 7\Plug-ins\RhinoCycles.rhp “RhinoCycles” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\export_PDF.rhp “PDF Export” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 7.3.21053.23031
D:\applications\Rhino 7\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
D:\applications\Rhino 7\Plug-ins\Displacement.rhp “Displacement”
很遗憾的告知，你所使用的是一组盗版授权 
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