AI 生成: 一个简洁优雅的个人博客网站，包含首页文章列表、文章详情页和关于页面。使用 Python Flask 构建，支持 Markdown 文章渲染。

app.py

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+# -*- coding: utf-8 -*-
+"""
+个人博客 - Flask 应用入口
+"""
+import os
+import re
+from datetime import datetime
+from flask import Flask, render_template, abort
+import markdown
+
+app = Flask(__name__)
+
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+POSTS_DIR = os.path.join(BASE_DIR, 'posts')
+
+
+def parse_front_matter(text):
+    """解析 Markdown 文件的 YAML front matter（简单实现）"""
+    meta = {}
+    body = text
+    match = re.match(r'^---\s*\n(.*?)\n---\s*\n(.*)$', text, re.DOTALL)
+    if match:
+        raw_meta, body = match.group(1), match.group(2)
+        for line in raw_meta.strip().splitlines():
+            if ':' in line:
+                key, value = line.split(':', 1)
+                meta[key.strip()] = value.strip()
+    return meta, body
+
+
+def load_posts():
+    """加载所有文章，返回按日期倒序的列表"""
+    posts = []
+    if not os.path.isdir(POSTS_DIR):
+        return posts
+    for filename in os.listdir(POSTS_DIR):
+        if not filename.endswith('.md'):
+            continue
+        slug = filename[:-3]
+        path = os.path.join(POSTS_DIR, filename)
+        with open(path, 'r', encoding='utf-8') as f:
+            raw = f.read()
+        meta, body = parse_front_matter(raw)
+        posts.append({
+            'slug': slug,
+            'title': meta.get('title', slug),
+            'date': meta.get('date', ''),
+            'summary': meta.get('summary', ''),
+            'content': body,
+        })
+    posts.sort(key=lambda p: p['date'], reverse=True)
+    return posts
+
+
+def get_post(slug):
+    """根据 slug 获取单篇文章"""
+    for post in load_posts():
+        if post['slug'] == slug:
+            return post
+    return None
+
+
+@app.route('/')
+def index():
+    """首页：文章列表"""
+    posts = load_posts()
+    return render_template('index.html', posts=posts)
+
+
+@app.route('/post/<slug>')
+def post_detail(slug):
+    """文章详情页"""
+    post = get_post(slug)
+    if not post:
+        abort(404)
+    html_content = markdown.markdown(
+        post['content'],
+        extensions=['fenced_code', 'codehilite', 'tables']
+    )
+    return render_template('post.html', post=post, content=html_content)
+
+
+@app.route('/about')
+def about():
+    """关于页面"""
+    return render_template('about.html')
+
+
+@app.errorhandler(404)
+def not_found(e):
+    return render_template('404.html'), 404
+
+
+if __name__ == '__main__':
+    app.run(debug=True, host='127.0.0.1', port=5000)