diff --git a/docs/.vuepress/public/cover/centrality-algorithm.png b/docs/.vuepress/public/cover/centrality-algorithm.png
new file mode 100644
index 0000000..33389de
Binary files /dev/null and b/docs/.vuepress/public/cover/centrality-algorithm.png differ
diff --git "a/docs/5. \347\256\227\346\263\225/12.2024-12-09-\344\270\255\345\277\203\346\200\247.md" "b/docs/5. \347\256\227\346\263\225/12.2024-12-09-\344\270\255\345\277\203\346\200\247.md"
index 7f2661e..8f6bcb0 100644
--- "a/docs/5. \347\256\227\346\263\225/12.2024-12-09-\344\270\255\345\277\203\346\200\247.md"	
+++ "b/docs/5. \347\256\227\346\263\225/12.2024-12-09-\344\270\255\345\277\203\346\200\247.md"	
@@ -1,5 +1,6 @@
 ---
 title: "中心性算法: 度中心性 | 接近中心性 | 中介中心性"
+cover: /cover/centrality-algorithm.png
 tags:
   - 分布式
   - 大数据