### FBI WARNING 本文不对具体细节做介绍，如果这篇文章对你有用，请做好相应的功课。 ### 关键词 `CloudFlare` `5秒盾` `浏览器安全检查中` `Checking your browser before accessing xxx.com` `jschl_answer` - 阅读剩余部分 -
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### 注册机 [http://www.xforce-cracks.com/?s=cad](http://www.xforce-cracks.com/?s=cad "http://www.xforce-cracks.com/?s=cad") ### AutoCAD 2021 [AutoCAD 2021 简体中文版 64位](http://trial2.autodesk.com/NetSWDLD/2021/ACD/9046B381-E756-4D38-A7EF-FAD07F4456E6/SFX/AutoCAD_2021_Simplified_Chinese_Win_64bit_dlm.sfx.exe) [AutoCAD 2021 离线帮助文件](http://download.autodesk.com/us/support/autocad_2021_product_help_download_page/autocad_2021_offline_help_simplified_chinese_win_64bit_dlm.sfx.exe) ### AutoCAD 2020 [AutoCAD 2020 简体中文版 64位](http://trial2.autodesk.com/NetSWDLD/2020/ACD/D98B88A0-50EC-4B88-9CA3-EA909DD6BC8C/SFX/AutoCAD_2020_Simplified_Chinese_Win_64bit_dlm.sfx.exe) [AutoCAD 2020 离线帮助文件](http://download.autodesk.com/us/support/autocad_2020_product_help_download_page/autocad_2020_offline_help_simplified_chinese_win_64bit_dlm.sfx.exe) [AutoCAD 2020.1 Update 64位](https://up.autodesk.com/2020/ACD/1B52239E-5BA3-4A90-BAD4-6936ED3425BD/AutoCAD_2020.1_Update_64bit.exe) [AutoCAD 2020.2 Update 64位](http://up.autodesk.com/2020/ACD/F1D2E857-19D2-4505-B39B-D918A338995A/AutoCAD_2020.1.2_Update_64bit.exe) ### AutoCAD 2019 [简体中文版 32位](http://trial2.autodesk.com/NetSWDLD/2019/ACD/281B1051-D3D3-4FCC-A52C-CF750093307C/SFX/AutoCAD_2019_Simplified_Chinese_Win_32bit_dlm.sfx.exe "简体中文版 32位") [简体中文版 64位](http://trial2.autodesk.com/NetSWDLD/2019/ACD/19B8BB53-6D2C-4FFF-A2E9-C8BBABC04DC8/SFX/AutoCAD_2019_Simplified_Chinese_Win_64bit_dlm.sfx.exe "简体中文版 64位") [AutoCAD 2019 离线帮助文件](http://download.autodesk.com/us/support/files/autocad_2019_product_help_download_page/AutoCAD_2019_Offline_Help_Simplified_Chinese_Win_32_64bit_dlm.sfx.exe "AutoCAD 2019 离线帮助文件 32位&64位") [AutoCAD 2019.0.1 Update 32位](https://up.autodesk.com/2019/ACD/DCB64C0D-CFEE-4CDA-B52A-9680EFF43597/AutoCAD_2019.0.1_Update_32bit.exe "AutoCAD 2019.0.1 Update 32位") [AutoCAD 2019.0.1 Update 64位](https://up.autodesk.com/2019/ACD/3C660FAD-2394-4684-889D-998BDF6F485A/AutoCAD_2019.0.1_Update_64bit.exe "AutoCAD 2019.0.1 Update 64位") - 阅读剩余部分 -
[Command-line interface description language](http://docopt.org/ "Command-line interface description language") [Command-Line Syntax Key](https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-R2-and-2012/cc771080%28v%3Dws.11%29 "Command-Line Syntax Key") [Utility Argument Syntax](http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap12.html#tag_12_01 "Utility Argument Syntax") [GNU Coding Standards](http://www.gnu.org/prep/standards/standards.html "GNU Coding Standards") [Command Line Standard](https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-powershell-1.0/ee156811%28v%3Dtechnet.10%29 "Command Line Standard")
[Quick reStructuredText](http://docutils.sourceforge.net/docs/user/rst/quickref.html "Quick reStructuredText") [A ReStructuredText Primer](http://docutils.sourceforge.net/docs/user/rst/quickstart.html "A ReStructuredText Primer") [reStructuredText Markup Specification](http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html "reStructuredText Markup Specification") [Index of /docs/ref/rst](http://docutils.sourceforge.net/docs/ref/rst/ "Index of /docs/ref/rst") [reStructuredText Standard Definition Files](http://docutils.sourceforge.net/docs/ref/rst/definitions.html "reStructuredText Standard Definition Files") [reStructuredText Directives](http://docutils.sourceforge.net/docs/ref/rst/directives.html "reStructuredText Directives") [An Introduction to reStructuredText](http://docutils.sourceforge.net/docs/ref/rst/introduction.html "An Introduction to reStructuredText") [reStructuredText Interpreted Text Roles](http://docutils.sourceforge.net/docs/ref/rst/roles.html "reStructuredText Interpreted Text Roles")
### 起因 因临时有需要，所以就打开了吃灰好久的酸酸乳软件，然后就发现刚启动没多久就发生了crash。 ### 排查 初步判断，把原因锁定在酸酸乳订阅上，因为之前都是用得好好的，其中最大的变数就是酸酸乳订阅，因为每次打开软件都是自动更新订阅，然后查看日志发现了一以下报错  这个异常是当尝试将 `nil` 插入到字典或者数组中才会发生的，所以就怀疑酸酸乳地址有错，导致软件解析失败，从而将 `nil` 加入到了字典中导致crash。果不其然，在前面的日志中发现其中一个酸酸乳是ipv6的服务器，因为ipv6格式中含有 `:` ，和酸酸乳协议刚好产生冲突，导致分割出来的字段超出预期而导致crash。  ### 解决方案 既然问题找到了，解决也简单，将ipv6的酸酸乳过滤掉即可。
收一个 Reqable 永久版订阅
