Unity下载编辑器缺失模块离线安装包的方式

以Windows操作系统，2021.3.16f1c1版本的Unity编辑器版本，需要Windows的il2cpp模块为例：

首先从官网获取到2021.3.16f1c1版本的Unity编辑器下载链接如下：

https://download.unitychina.cn/download_unity/56dbfdd6697f/Windows64EditorInstaller/UnitySetup64.exe

红色标记部分是该版本编辑器的下载链接前缀。我们通过下面的单独模块的下载链接可以得知，不同版本unity的单独模块的下载链接格式为：

Unity版本关联的下载前缀+下载链接对应的模块+版本号

例如：下面的链接是2020.3.27f1c1版本的Windows-IL2CPP-Support模块的单独下载链接。（windows系统使用的为exe扩展名，Mac使用的为pkg扩展名）

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Windows-IL2CPP-Support-for-Editor-2020.3.27f1c1.exe

通过替换可以得到：2021.3.16f1c1版本的Windows-IL2CPP-Support模块的单独下载链接。

https://download.unitychina.cn/download_unity/56dbfdd6697f/TargetSupportInstaller/UnitySetup-Windows-IL2CPP-Support-for-Editor-2021.3.16f1c1.exe

之后，使用该链接即可下载到我们需要的某个模块的离线安装包。该方法适用于需要离线安装模块或者Unity Hub出错导致无法安装的情况下使用。

以下是从2020.3.27f1c1版本发行说明中提取的单独模块的下载链接：

https://download.unitychina.cn/download_unity/35c20f28741a/Windows64EditorInstaller/UnitySetup64.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Android-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-AppleTV-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-iOS-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Linux-IL2CPP-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Linux-Mono-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Lumin-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Mac-Mono-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Universal-Windows-Platform-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-WebGL-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/TargetSupportInstaller/UnitySetup-Windows-IL2CPP-Support-for-Editor-2020.3.27f1c1.exe

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorInstaller/Unity.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Android-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-AppleTV-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-iOS-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Linux-IL2CPP-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Linux-Mono-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Lumin-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Mac-IL2CPP-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-WebGL-Support-for-Editor-2020.3.27f1c1.pkg

https://download.unitychina.cn/download_unity/35c20f28741a/MacEditorTargetInstaller/UnitySetup-Windows-Mono-Support-for-Editor-2020.3.27f1c1.pkg