diff --git a/CrossDown.py b/CrossDown.py
index 6410a3a..0e435ea 100644
--- a/CrossDown.py
+++ b/CrossDown.py
@@ -232,6 +232,8 @@ class CodeBlock:
                     self.codes[index] = f'<div class="{head}">{re.sub(f"({head})", "", code)}</div>'
             elif re.match(r'\$[^$]*\$', code):  # 是LaTex代码(单行)
                 self.codes[index] = re.sub(fr'\$([^$]*)\$', r'<p>\(\1\)</p>', code)
+            elif re.match(r'¥[^$]*¥', code):  # 是数学函数(单行)
+                self.codes[index] = re.sub(fr'¥([^$]*)¥', r'<p>\(\1\)</p>', code)
             else:  # 是突出块
                 self.codes[index] = f'<span class="block">{code}</span>'
 
@@ -326,7 +328,9 @@ class Syllabus:
              re.sub(f'^({match.groups()[0]})',
                     fr'{"#" * len(match.groups()[0].split("."))} \1{{#' + match.groups()[0] + '}', origen)
              if match is not None else origen)  # 对于不是提纲的行,直接返回原始字符
-            (re.match(r'^([\d.]+) ', line), line)  # 匹配提纲号
+            ((lambda x: re.match(r'^([\d.]+) ', x)  # 判断是否是提纲
+                if not any((x.startswith('.'), re.search('\. ', x) is not None))
+                else None)(line), line)  # 排除.在提纲号开头或结尾的情况
             for line in self.text.splitlines()  # 分割并遍历文本的每一行
         ])
 
diff --git a/README.html b/README.html
index ea74e2c..18b5a87 100644
--- a/README.html
+++ b/README.html
@@ -117,6 +117,12 @@
     <p>引文内添加<em>斜体</em><strong>粗体</strong><u>下划线</u><s>删除线</s><mark>高亮</mark></p>
     </blockquote>
     <h1>6<span id="6"></span> 提纲</h1>
+    <h2>6.1<span id="6.1"></span> 提纲号</h2>
+    <p>以数字和点组成,通过空格与提纲名分隔,例如:</p>
+    <h3>6.1.1<span id="6.1.1"></span> 提纲号示例</h3>
+    <p>点不能出现在开头或结尾,例如
+    .6.1.2 错误示范
+    6.1.3. 错误示范</p>
     <h1>7<span id="7"></span> 注释</h1>
     <h2>7.1<span id="7.1"></span> 强注释</h2>
     <h2>7.2<span id="7.2"></span> 弱注释</h2>
@@ -124,10 +130,12 @@
     <span class="block">// 代码中的注释弱不会被移除</span></p>
     <h1>8<span id="8"></span> 列表</h1>
     <h2>8.1<span id="8.1"></span> 有序列表</h2>
-    <h2>1.<span id="1."></span> a</h2>
-    <h2>2.<span id="2."></span> b</h2>
-    <h2>3.<span id="3."></span> c</h2>
-    <h2>4.<span id="4."></span> d</h2>
+    <ol>
+    <li>a</li>
+    <li>b</li>
+    <li>c</li>
+    <li>d</li>
+    </ol>
     <h2>8.2<span id="8.2"></span> 无序列表</h2>
     <ul>
     <li>A</li>
diff --git a/README.md b/README.md
index 9c07fa8..a6ca283 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,12 @@ graph LR
 > 引文内添加*斜体***粗体**~下划线~~~删除线~~==高亮==
 
 6 提纲
-
+6.1 提纲号
+以数字和点组成,通过空格与提纲名分隔,例如:
+6.1.1 提纲号示例
+点不能出现在开头或结尾,例如
+.6.1.2 错误示范
+6.1.3. 错误示范
 7 注释
 7.1 强注释
 |=