官方下载地址：http://files.mcneel.com/dujour/exe/grasshopper_0.9.76.0.rhi
安装目录在 C:\Users\用户\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins
Grasshopper新版本开放下载。此版本包含一些新功能并且修复了大量bug。但是我们不推荐您在您的项目即将完成的时候更新这个版本，因为新版本可能会有一些新的bug。
需先装上
http://www.microsoft.com/download/en/details.aspx?id=26347
如果你的系统无法执行 rhi 文件
透过手工修复办法
64-bit Windows
1.Right-click a Rhino Installer Package (RHI) file, then click Open with…
2.In the Open with dialog box, select the Always use the selected program to open this kind of file checkbox.
3.In the Open with dialog box, click Browse…
4.Browse to C:\Program Files\Rhinoceros 5 (64-bit)\System\x64 then select rhiexec.exe(If you installed Rhino in a different location, browse to that location)
5.Click Open
6.Click OK
32-bit Windows
1.Right-click a Rhino Installer Package (RHI) file, then click Open with…
2.In the Open with dialog box, select the Always use the selected program to open this kind of file checkbox.
3.In the Open with dialog box, click Browse…
4.Browse to C:\Program Files\Rhinoceros 5\System\x86 then select rhiexec.exe (If you installed Rhino in a different location, browse to that location)
5.Click Open
6.Click OK
附录：
[rhino吧QQ官方1群] 313167903
