diff --git a/docs/.vitepress/config.ts b/docs/.vitepress/config.ts
index c473f73..c49705e 100644
--- a/docs/.vitepress/config.ts
+++ b/docs/.vitepress/config.ts
@@ -6,12 +6,12 @@ export default defineConfig({
   title: "徐越的编程书",
   markdown: {
     container: {
-      tipLabel: '提示',
-      warningLabel: '警告',
-      dangerLabel: '危险',
-      infoLabel: '信息',
-      detailsLabel: '详细信息'
-    }
+      tipLabel: "提示",
+      warningLabel: "警告",
+      dangerLabel: "危险",
+      infoLabel: "信息",
+      detailsLabel: "详细信息",
+    },
   },
   themeConfig: {
     // https://vitepress.dev/reference/default-theme-config
@@ -28,7 +28,45 @@ export default defineConfig({
       { text: "计算机科学", link: "/cs/00/index.md" },
     ],
     sidebar: {
-      "/python": [{}],
+      "/python": [
+        {
+          text: "课程须知",
+          items: [
+            { text: "本网站", link: "/python/00/book.md" },
+            { text: "自测猫", link: "/python/00/cat.md" },
+            { text: "练习册", link: "/python/00/playground.md" },
+            { text: "判题狗", link: "/python/00/dog.md" },
+          ],
+        },
+        {
+          text: "第一天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第二天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第三天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第四天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第五天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第六天",
+          items: [{ text: "", link: "" }],
+        },
+        {
+          text: "第七天",
+          items: [{ text: "", link: "" }],
+        },
+      ],
       "/oa": [{}],
       "/crawler": [{}],
       "/cs": [
@@ -49,7 +87,11 @@ export default defineConfig({
         { text: "......", link: "/cs/14/index.md" },
       ],
     },
-    outlineTitle: '目录',
-    docFooter: { prev: '上一篇', next: '下一篇' }
+    outlineTitle: "目录",
+    sidebarMenuLabel: "侧边栏",
+    returnToTopLabel: "返回顶部",
+    darkModeSwitchLabel: "浅色/暗色",
+
+    docFooter: { prev: "上一篇", next: "下一篇" },
   },
 })
diff --git a/docs/.vitepress/theme/components/CodeEditor.vue b/docs/.vitepress/theme/components/CodeEditor.vue
index 59cc650..e9aba6b 100644
--- a/docs/.vitepress/theme/components/CodeEditor.vue
+++ b/docs/.vitepress/theme/components/CodeEditor.vue
@@ -12,11 +12,13 @@ import { asyncRun } from "./py"
 
 interface Props {
   modelValue: string
+  readonly: boolean
   lang?: "python" | "c"
 }
 
 const props = withDefaults(defineProps<Props>(), {
   lang: "python",
+  readonly: false
 })
 
 const { isDark } = useData()
@@ -38,21 +40,26 @@ const styleTheme = EditorView.baseTheme({
 })
 
 const input = ref("")
-const output = ref("")
-const code = ref(props.modelValue)
+const output = ref<string[]>([])
+const error = ref("")
+const code = ref(props.modelValue.trim())
 
 async function run() {
   const ev = await asyncRun(code.value, input.value)
-  output.value = ev.result
+  output.value = ev.results
+  error.value = ev.error
 }
 
 function reset() {
-  code.value = props.modelValue
+  code.value = props.modelValue.trim()
+  error.value = ""
+  output.value = []
 }
 </script>
 <template>
   <p>代码编辑区</p>
   <Codemirror
+    :disabled="props.readonly"
     v-model="code"
     indentWithTab
     :extensions="[styleTheme, lang, isDark ? oneDark : smoothy]"
@@ -65,12 +72,13 @@ function reset() {
     :extensions="[styleTheme, isDark ? oneDark : smoothy]"
     :tabSize="4"
   />
-  <p>结果</p>
-  <p>{{ output }}</p>
   <div :class="$style.actions">
     <VPButton :class="$style.run" @click="run" text="运行"></VPButton>
     <VPButton @click="reset" theme="alt" text="重置"></VPButton>
   </div>
+  <p v-if="output.length || error">运行结果</p>
+  <pre v-for="(it, index) in output" :key="index">{{ it }}</pre>
+  <pre>{{ error }}</pre>
 </template>
 <style module>
 .actions {
diff --git a/docs/.vitepress/theme/components/py.ts b/docs/.vitepress/theme/components/py.ts
index 1b7da5f..f712284 100644
--- a/docs/.vitepress/theme/components/py.ts
+++ b/docs/.vitepress/theme/components/py.ts
@@ -14,7 +14,7 @@ const asyncRun = (() => {
   return (python: string, input: string) => {
     // the id could be generated more carefully
     id = (id + 1) % Number.MAX_SAFE_INTEGER
-    return new Promise<{ result: string; error: string }>((onSuccess) => {
+    return new Promise<{ results: string[]; error: string }>((onSuccess) => {
       callbacks[id] = onSuccess
       worker.postMessage({ python, input, id })
     })
diff --git a/docs/.vitepress/theme/index.ts b/docs/.vitepress/theme/index.ts
index 341dbcd..561d8ca 100644
--- a/docs/.vitepress/theme/index.ts
+++ b/docs/.vitepress/theme/index.ts
@@ -2,13 +2,13 @@ import type { Theme } from "vitepress"
 import DefaultTheme from "vitepress/theme"
 import BVideo from "./components/BVideo.vue"
 import Author from "./components/Author.vue"
-import CodeEditor from "./components/CodeEditor.vue"
+// import CodeEditor from "./components/CodeEditor.vue"
 
 export default {
   extends: DefaultTheme,
   async enhanceApp({ app }) {
     app.component("bvideo", BVideo)
     app.component("author", Author)
-    app.component("code-editor", CodeEditor)
+    // app.component("code-editor", CodeEditor)
   },
 } satisfies Theme
diff --git a/docs/public/worker.js b/docs/public/worker.js
index 9b6f9db..617303a 100644
--- a/docs/public/worker.js
+++ b/docs/public/worker.js
@@ -18,12 +18,12 @@ self.onmessage = async (event) => {
   const { id, python, input } = event.data
   // Now is the easy part, the one that is similar to working in the main thread:
   try {
-    let result = ""
+    let results = []
     self.pyodide.setStdin({ stdin: () => input })
-    self.pyodide.setStdout({ batched: (str) => (result = str) })
+    self.pyodide.setStdout({ batched: (str) => results.push(str) })
     await self.pyodide.runPythonAsync(python)
-    self.postMessage({ result, error: '', id })
+    self.postMessage({ results, error: "", id })
   } catch (error) {
-    self.postMessage({ result: '', error: error.message, id })
+    self.postMessage({ results: [], error: error.message, id })
   }
 }
diff --git a/docs/python/00/book.md b/docs/python/00/book.md
new file mode 100644
index 0000000..e69de29
diff --git a/docs/python/00/cat.md b/docs/python/00/cat.md
new file mode 100644
index 0000000..b09c5ac
--- /dev/null
+++ b/docs/python/00/cat.md
@@ -0,0 +1 @@
+# 编程规范
\ No newline at end of file
diff --git a/docs/python/00/dog.md b/docs/python/00/dog.md
new file mode 100644
index 0000000..e69de29
diff --git a/docs/python/00/playground.md b/docs/python/00/playground.md
new file mode 100644
index 0000000..e69de29
diff --git a/docs/python/index.md b/docs/python/index.md
index 36454d9..e69de29 100644
--- a/docs/python/index.md
+++ b/docs/python/index.md
@@ -1,8 +0,0 @@
-# python
-
-<script setup>
-const code = `n = input()
-print(n)`
-</script>
-
-<code-editor v-model="code"></code-editor>