diff --git a/.gitignore b/.gitignore
index 9c869b6..e69de29 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +0,0 @@
-
-数据结构.md
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
index fa5d8d9..08297e2 100644
--- a/.obsidian/workspace.json
+++ b/.obsidian/workspace.json
@@ -69,7 +69,7 @@
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@@ -142,7 +142,8 @@
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+    "width": 300,
+    "collapsed": true
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   "left-ribbon": {
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@@ -156,7 +157,7 @@
       "command-palette:打开命令面板": false
     }
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-  "active": "8cefdf012dbaa77e",
+  "active": "aafaa5a821c90ec9",
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diff --git a/数据结构.md b/数据结构.md
new file mode 100644
index 0000000..efd1870
--- /dev/null
+++ b/数据结构.md
@@ -0,0 +1,6 @@
+## 第一章
+
+数据结构（三要素）
+* 逻辑结构
+* 存储结构
+* 数据运算
\ No newline at end of file