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lornally · Feb 22, 2024 · 191e167 · 191e167
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diff --git a/_posts/2022-12-13-latex搞公式.md b/_posts/2022-12-13-latex搞公式.md
@@ -198,4 +198,9 @@ l\widetilde a
 {\overline{A \cup B}}
 $$
 
+### 除法
+
+$$
+\frac{\alpha	\cup \beta}{b}
+$$
 
diff --git a/_posts/2023-03-04-github针对yekyll玩命报安全警告.md b/_posts/2023-03-04-github针对yekyll玩命报安全警告.md
@@ -183,4 +183,13 @@ bundle exec jekyll serve --livereload
 ### 20240208
 
 > github再次报错, 报jquery的错误
+* 但是我找不到引入jquery的地方
+
+```sh
+bundle update # 这个报一堆问题
+bundle update github-pages # pages官方建议这个    https://docs.github.com/en/pages/setting-up-a-github-pages-site-with-jekyll/testing-your-github-pages-site-locally-with-jekyll#keeping-your-site-up-to-date-with-the-github-pages-gem
+# 然后报错
+Installing commonmarker 0.23.10 with native extensions Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
+# copilot建议安装command-tools, 但是, 本身command-tools已经安装好了. 至此, 走到了死胡同
+```