跟着麦叔学flask，感谢b站麦叔

.gitignore

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+**/__pycache__
+**/*.db
+**/*.sql
+**/*.db.back
+databases/*

blueprint/blog_views.py

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+from flask import Blueprint, render_template
+from database import get_owp_db
+import os
+
+
+blog_bp = Blueprint('blog', __name__)
+
+@blog_bp.route('/')
+def home():
+    db = get_owp_db()
+    return render_template('home.html')
+
+@blog_bp.route('/about/')
+def about():
+    return render_template('about.html')
+    pass
+
+@blog_bp.route('/db_test/')
+def test_db():
+    db = get_owp_db()
+
+    try:
+        cur = db.execute('SELECT sqlite_version();')
+        ver = cur.fetchone()[0]
+        return f"数据库连接成功！SQLite 版本是: {ver}"
+    except Exception as e:
+        return f"连接失败: {str(e)}"
+
+

blueprint/study_views.py

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+from flask import Blueprint, render_template, request, url_for, flash, redirect
+import os
+import sqlite3
+
+study_bp = Blueprint('study', __name__)
+
+def get_db_conn():
+    conn = sqlite3.connect('/var/open-ww3-project-ww3-tw/databases/database.db')
+    conn.row_factory = sqlite3.Row
+    return conn
+
+def get_posts(posts_id):
+    conn = get_db_conn()
+    posts = conn.execute("SELECT *, datetime(created, '+8 hours') AS created_8 FROM posts WHERE id = ?", (posts_id,)).fetchone()
+    conn.close()
+    return posts
+
+@study_bp.route('/')
+def home():
+    conn = get_db_conn()
+    sql = "SELECT *, datetime(created, '+8 hours') AS created_8 FROM posts;"
+    posts = conn.execute(sql).fetchall()
+    conn.close()
+    return render_template('study/home.html', posts=posts[::-1])
+
+@study_bp.route('/about/')
+def about():
+    return render_template('study/about.html')
+
+@study_bp.route('/posts/<int:posts_id>')
+def show_posts_id(posts_id):
+    conn = get_db_conn()
+    posts = get_posts(posts_id)
+    if posts is None:
+        return '抱歉，未查到该文章'
+
+    return render_template('study/posts.html', posts=posts)
+
+@study_bp.route('/posts/new/', methods=('GET', 'POST'))
+def new():
+    if request.method == "POST":
+        title = request.form['title']
+        content = request.form['content']
+
+        if not title:
+            flash('标题不能为空')
+        elif not content:
+            flash('内容不能为空')
+        else:
+            conn = get_db_conn()
+            conn.execute('insert into posts (title, content) values (?, ?)', (title, content))
+            conn.commit()
+            conn.close()
+            flash('文章发布成功')
+            return redirect(url_for('study.home'))
+            
+    return render_template('study/new.html')
+
+@study_bp.route('/posts/<int:posts_id>/edit', methods=('GET', 'POST'))
+def edit_posts_id(posts_id):
+    if request.method == "POST":
+        title = request.form['title']
+        content = request.form['content']
+
+        if not title:
+            flash('标题不能为空')
+        elif not content:
+            flash('内容不能为空')
+        else:
+            conn = get_db_conn()
+            conn.execute('update posts set title= ?, content = ? where id = ?', (title, content, posts_id))
+            conn.commit()
+            conn.close()
+            return redirect(url_for('study.home'))
+    
+    return render_template('study/edit.html', posts=posts)
+
+@study_bp.route('/posts/<int:posts_id>/delete/', methods=['POST' , 'GET'])
+def delete_posts_id(posts_id):
+    if request.method == "POST":
+        posts = get_posts(posts_id)
+        conn = get_db_conn()
+        conn.execute('DELETE FROM posts WHERE id = ?', (posts_id,))
+        conn.commit()
+        conn.close()
+        flash('删除成功')
+        return redirect(url_for('study.home'))
+    
+    elif request.method == "GET":
+        posts = get_posts(posts_id)
+        conn = get_db_conn()
+        conn.execute('DELETE FROM posts WHERE id = ?', (posts_id,))
+        conn.commit()
+        conn.close()
+        return render_template('study/delete.html', posts=posts)

database.py

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+import sqlite3
+from flask import g
+
+DATABASE_owp = '/var/databases/sqlite/owp.db'
+
+def get_owp_db():
+    db = getattr(g, '_database', None)
+    if db is None:
+        db = g._database = sqlite3.connect(DATABASE_owp)
+        db.row_factory = sqlite3.Row
+    return db

main.py

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+from flask import Flask, render_template, redirect, url_for, g
+from blueprint.blog_views import blog_bp
+from blueprint.study_views import study_bp
+# from blueprint.admin_views import admin_bp
+import os
+
+app = Flask(__name__, static_url_path='/static/')
+
+# session
+#app.secret_key = "508948973a8651f160baf3b26f18c47d"
+app.secret_key = '玩鵬畝遜溉痕叛課還擇鼇粹拜溜泉聰倡效蘭鱅都凍芝西鄂'
+
+
+
+# 注册蓝图
+app.register_blueprint(blog_bp, url_prefix='/blog')
+app.register_blueprint(study_bp, url_prefix='/study')
+# app.register_blueprint(admin_bp, url_prefix='/admin')
+
+
+@app.route('/')
+def repage():
+    # return '<meta http-equiv="refresh" content="0.1;url=/blog/">'
+    return redirect(url_for('study.home'))
+
+
+@app.route('/greet/<name>/')
+def greet(name):
+    return f'Hello, {name}!'
+
+# 全局清理关闭数据库连接
+@app.teardown_appcontext
+def close_connection(exception):
+    db = getattr(g, '_database', None)
+    if db is not None:
+        db.close()
+
+if __name__ == '__main__':
+    app.run(host="0.0.0.0", port=8085, debug=True)

static/css/main.css

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+/* css页面蓝图 */
+
+/* 外部背景 */
+html, body {
+    height: 100%;
+    width: 100%;
+    margin: 0;   /*外边框*/
+    padding: 0;  /*内边框*/
+    overflow: hidden;  /* 防止滚动条 */
+    background-color: #333;  /* 背景颜色 */
+}
+
+/* 内部容器 */
+#app-canvas {
+    width: 1280px; 
+    height: 800px;
+
+    background-color: rgba(147, 185, 255, 0.644);
+    border: 5px solid #0056b3;  /* 定义边框 5px 实线 蓝色 */
+    /* transform-origin: 0 0;   /* 定义缩放起点 左上角 */
+
+    position:fixed; /* 固定页面，不滚动 */
+    left: 50%;       /* 调整左边缘位置到中央 */
+    top: 50%;        /* 调整上边缘位置到中央 */
+
+    padding: 30px;   /* 内部间距 30px */
+
+
+}
+
+header {
+    margin-bottom: 30px;   /* 外部间距 30px */
+    text-align: center;    /* 文字居中 */
+}
+
+h1 {
+    font-size: 48px; 
+    color: #fff;
+    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
+}
+
+#content-area {
+    display: flex;
+    justify-content: space-around;
+    gap: 40px;
+}
+
+/* 自带 */
+.box {
+    width: 500px; 
+    height: 600px;
+    background-color: #ffffffcc;
+    border: 1px solid #ccc;
+    padding: 20px;
+    font-size: 20px;
+    text-align: left;
+    overflow: auto;
+}

static/css/style.css

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+h1 {
+    border: 2px;
+    color:brown;
+    text-align: center;
+    padding: 10px;
+}

static/js/main.js

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+// js目前不会，先靠ai
+
+function resizeCanvas() {
+    // 定义设计基准尺寸
+    const designWidth = 1280;
+    const designHeight = 800;
+            
+    // 获取当前浏览器视口尺寸
+    const currentWidth = window.innerWidth;
+    const currentHeight = window.innerHeight;
+
+    const canvas = document.getElementById('app-canvas');
+
+    // 计算缩放比例
+    const scaleX = currentWidth / designWidth;
+    const scaleY = currentHeight / designHeight;
+    const scaleFactor = Math.min(scaleX, scaleY);
+
+    // 确保元素中心与 left: 50%; top: 50%; 对齐
+    canvas.style.transform = `translate(-50%, -50%) scale(${scaleFactor})`;
+}
+
+// 首次加载时执行
+document.addEventListener('DOMContentLoaded', resizeCanvas); 
+// 监听窗口大小变化时执行，保持动态缩放
+window.addEventListener('resize', resizeCanvas);
+        
+// 确保在某些情况下也能正确初始化
+resizeCanvas();

templates/about.html

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+<html>
+    <head>
+        <title>不想写了</title>
+        <meta charset="utf-8" lang="zh-CN">
+    </head>
+    <body>
+        忘记写了
+        <br>
+        所以暂时就不写了
+        <p>2025.08.05</p>
+        <p>over</p>
+    </body>
+</html>

templates/home.html

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+<!-- 主页 -->
+<html>
+    <head>
+        <title>首页 | ww3</title>
+        <meta charset="utf-8" lang="zh-CN">
+        <link rel="icon" type="image/x-icon" href="/static/icon/original.ico">
+        <!-- 引入页面蓝图css -->
+        <link rel="stylesheet" type="text/css" href="/static/css/main.css">
+    </head>
+    <body>
+        <div id="app-canvas">
+            <header>
+                <h1 style="margin: 80px 0 0 0; color:aqua;">open-ww3-project</h1>
+            </header>
+            <!-- 导航栏 -->
+            <div id="navbar1">
+                <table border="0" style="background-color: rgba(147, 185, 255, 0.644);">
+                    <tbody>
+                        <tr>
+                            <td id="td_navbar_40px"><b><a href="https://ww3.tw/" id="url_">首页</a></b></td>
+                            <td id="td_navbar_40px"><b><a href="https://ww3.tw/blog/about/" id="url_">关于</a></b></td>
+                            <td id="td_navbar_40px"><b><a href="https://ww3.tw/blog/post/" id="url_">文章</a></b></td>
+                            <td id="td_navbar_75px"><b><a href="https://ww3.tw/jumping-message/" id="url_">弹幕留言</a></b></td>
+                            <td id="td_navbar_78px"><b><a href="https://ww3.tw/short-url/" id="url_">短链生成</a></b></td>
+                            <td id="td_navbar_52px"><b><a href="https://gitea.ww3.tw/skimrme/" id="url_">gitea</a></b></td>
+                            <td id="td_navbar_160px"><b><a href="https://ww3.tw/docker-registry/" id="url_">docker-registry</a></b></td>
+                            <td id="td_navbar_40px"><b><a href="https://api.ww3.tw/" id="url_">api</a></b></td>
+                            <td id="td_navbar_40px"><b><a href="https://wiki.ww3.tw/" id="url_">wiki</a></b></td>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+            <!-- 倒过来的箱子 真不明白，为什么我会称呼箱子为open-ww3-project-->
+            <div style="margin: 80px -30px -100px 180px;">
+                <img id="open-ww3-project-img" width="10%" src="/static/img/open-ww3-project.png" alt="open-ww3-project-img">
+            </div>
+            <!-- gitea 图标 -->
+            <a style="background-color: blueviolet; position: absolute;" href="https://gitea.ww3.tw/skimrme/open-ww3-project-ww3-tw">
+                <img id="gitea-img" src="https://gitea.ww3.tw/assets/img/logo.svg" width="150px" alt="gitea" >
+            </a>
+
+            <!-- 导航栏 -->
+            <div id="content-area">
+                <!-- 屑站日志 -->
+                <h3 style="margin: 70px 0 30px -50px;">屑站日志:<br></h3>
+                <div id="logs">
+                    <font size="3.2">
+                        <table border="0">
+                            <tbody>
+                                <?php
+                                    // 引入数据库 sqlite
+                                    include "./logs.php.text";
+                                ?>
+                            </tbody>
+                        </table>
+                    </font>
+                </div>
+                <!-- 屑站日志 -->
+
+                <div id="post_content">
+                    <?php
+                        //include "post/index.php";
+                        // 设定数据库路径
+                        $db_path = '/var/www/owp/open-ww3-project-ww3-tw/databases/sqlite/owp.db';
+
+                        try {
+                        // 连接数据库
+                        $db = new SQLite3($db_path);
+                        // 连接成功输出连接成功
+                        echo "<!--数据库连接成功-->";
+                        // 如果连接成功，但是内部状态有问题
+                        if ($db->lastErrorCode() !==0) {
+                        // 依旧显示为连接失败
+                        die("数据库连接失败");
+                        }
+
+                        // 内容区   
+                        // 执行sql命令 查询表单
+                        $select_id_date_title_from_posts_btos /*查询posts表单中的id date title id从大到小排列*/ = $db->query('SELECT id, date, title FROM posts ORDER BY id DESC'); // 执行查询posts表单中的id date title id从大到小排列的命令
+                        // 循环 写入
+
+                        echo "<center><b><h2>全部文章</h2></b></center>";
+                        echo "<br>";
+                        echo "文章如下↓";
+                        echo "<br>";
+                        echo "<br>";
+
+                        while ($row = $select_id_date_title_from_posts_btos->fetchArray(SQLITE3_ASSOC)) {
+
+                        echo "文章id: " . $row['id'] . "<br>";
+                        echo $row['date'] . "&nbsp;&nbsp;&nbsp;" . "文章标题: " . $row['title'] . "<br>";
+                        echo "<a href='https://ww3.tw/blog/post/s/?id=" . $row['id'] . "'>页面跳转</a><br><br>";
+                        }
+        
+        
+
+                        // 关闭数据库连接
+                        $db->close();
+    
+                        // 捕获php报错
+                        } catch (Exception $e) {
+                            // 依旧显示为连接失败
+                            die("数据库连接失败");
+                            // 关闭数据库连接
+                            $db->close();
+                        }
+                    ?>
+                </div>
+            </div>
+            <!-- 私の娘 -->
+                <div id="my_girl" style="margin: -40px 0 0 1100px;"></div>
+            <!-- 私の娘 -->
+        </div>
+    </body>
+</html>
+
+
+
+<!-- css 部分 -->
+<style>
+    #navbar1 {
+        margin: -160px 0 100px -30px;
+    }
+    #url_
+    {
+        text-decoration: none;
+        color: rgb(0, 0, 0);
+        font-size: 18.8px;
+    }
+    #td_navbar_40px
+    {
+        width: 40px;
+    }
+
+    #td_navbar_52px
+    {
+        width: 52px;;
+    }
+
+    #td_navbar_78px
+    {
+        width: 78px;
+    }
+
+    #td_navbar_160px
+    {
+        width: 160px;
+    }
+
+    /* 日志 */
+    #logs
+    {
+        height: 220px; 
+        width: 450px; 
+        overflow: auto; 
+        background: #ffffffbc;
+        /* up、right、down、left */
+	    margin: 115px 0px 0px -280px;
+    }
+
+    #td_logs
+    {
+        width: 75px;  
+        padding-top: 1.8px;
+        vertical-align: top;
+    }
+
+    #td_logs_content
+    {
+        color: rgb(132, 132, 132);   
+        padding-left: 10px;
+        padding-bottom: 5px;
+    }
+    /* 日志 */
+
+    /* 文章 */
+    #post_content
+    {
+        /*text-align: center;*/
+        height: 500px; 
+        width: 490px; 
+        color: rgb(202, 202, 202);
+        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
+        background-color: rgba(27, 27, 27, 0.010);
+        overflow: auto; 
+        font-size: 19px;
+        /* up、right、down、left */
+	    margin: 40px 0 0 0;
+    }
+
+    /* 图标 */
+    #open-ww3-pro1ject-img
+    {
+        overflow: auto; 
+        /* up、right、down、left */
+	    margin: 0 0 0 0;
+    }
+
+    #gitea-img
+    {
+        margin: -150px 0 0 1150px;
+    }
+
+</style>
+
+
+<!-- js 部分-->
+<script src="/static/js/main.js"> 引入js页面蓝图 </script>
+
+<!-- 私の娘 -->
+    <!-- https://cdn.jsdelivr.net/npm/sakana-widget@2.7.1/lib/sakana.min.css -->
+    <!-- https://cdn.jsdelivr.net/npm/sakana-widget@2.7.1/lib/sakana.min.js -->
+    <!-- https://cdnjs.cloudflare.com/ajax/libs/sakana-widget/2.7.1/sakana.min.css -->
+    <!-- https://cdnjs.cloudflare.com/ajax/libs/sakana-widget/2.7.1/sakana.min.js -->
+
+    <link
+    rel="stylesheet"
+    href="https://cdn.jsdelivr.net/npm/sakana-widget@2.7.1/lib/sakana.min.css"
+    />
+
+<script>
+    function initSakanaWidget(){
+    const customImageUrl = 'https://open-ww3-project.ww3.tw/blog/src/img/my_girl.png';
+    const baseCharacter = SakanaWidget.getCharacter('chisato'); 
+    const myCharacter = {
+        image: customImageUrl,
+        initialState: baseCharacter.initialState,
+    };
+
+    SakanaWidget.registerCharacter('my_girl', myCharacter);
+    new SakanaWidget({ 
+        character: 'my_girl',
+        size: 200,
+        autoFit: true,
+        controls: true
+    }).mount('#my_girl'); 
+    }
+</script>
+
+<script
+    async
+    onload="initSakanaWidget()"
+    src="https://cdn.jsdelivr.net/npm/sakana-widget@2.7.1/lib/sakana.min.js">
+</script>
+<!-- 私の娘 -->

templates/study/about.html

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+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %} 关于页面 {% endblock %}
+
+{% block content %}
+
+大家好......
+没有了
+    
+{% endblock %}

templates/study/base.html

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+{# base模板 #}
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8" lang="zh_CN">
+        <title>{% block title %}{% endblock %}</title>
+        <!--link rel="stylesheet" href="/static/css/style.css"-->
+        {# 建立一个url，来源于static文件夹的，文件名字为css文件夹下的style.css #}
+        <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
+    </head>
+    <body>
+        <div style="width: 100%; background-color: rgb(122, 91, 246);">
+            <table>
+                <tr>
+                    <td>
+                        <div class="url">
+                            <a href="/study" class="url">home</a>
+                        </div>
+                    </td>
+                    <td>
+                        <div class="url">
+                            <!--a href="/study/about" class="url">about</a-->
+                            <a href="{{ url_for('study.about')}}" class="url">about</a>
+                        </div>
+                    </td>
+                    <td>
+                        <div class="url">
+                            <a href="/study/posts/new" class="url">新建文章</a>
+                        </div>
+                    </td>
+                </tr>
+            </table>
+        </div>
+        {% for message in get_flashed_messages() %}
+            <div>{{ message }}</div>
+        {% endfor %}
+
+        {% block content %} {% endblock %}
+    </body>
+</html>
+
+<style>
+    body {
+        margin: 0 0 0 0;
+        background-color: rgb(157, 209, 255);
+    }
+
+    .url {
+        height: 40px;
+        margin: 10px 0 0 10px;
+        color: rgb(0, 0, 0);
+        text-decoration: none;
+    }
+</style>

templates/study/delete.html

@@ -0,0 +1,5 @@
+<b>确定要删除 "{{ posts['title'] }}" 吗？</b>
+
+<form action="{{ url_for('study.delete_posts_id', posts_id=posts['id']) }}" method="post">
+    <input type="submit" value="删除文章" class="btn btn-danger htn-sm" onclick="return confirm('确定要删除吗')">
+</form>

templates/study/edit.html

@@ -0,0 +1,25 @@
+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %} 编辑 "{{ posts['title'] }}" {% endblock %}
+
+{% block content %}
+
+<form method="post">
+    <div class="form-group">
+        <label for="title">标题</label>
+        <input type="text" name="title" placeholder="标题" class="form-control" value="{{ request.form['title'] or posts['title'] }}">
+        </inpit>
+    </div>
+    <div class="form-group">
+        <label for="content">内容</label>
+        <textarea name="content" placeholder="文章内容" class="form-control">{{ request.form['content'] or posts['content'] }}</textarea>
+    </div>
+    <div class="form-group">
+        <button type="submit" class="btn btn-primary">提交</button>
+    </div>
+</form>    
+
+    
+{% endblock %}

templates/study/home.html

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+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %}study学习{% endblock %}
+
+{% block content %}
+    <h1>学习如何搭建一个blog</h1>
+    <h2>欢迎访问一个学习如何搭建一个blog的页面</h2>
+    
+    {% for posts in posts %}
+    <a href="/study/posts/{{ posts['id'] }}">
+    <!--a href="{{ url_for('study.show_posts_id', posts_id=posts['id']) }}"-->
+        <h2>{{ posts['title'] }}</h2>
+    </a>
+    <span>{{ posts['created_8'] }}</span>
+    <hr>
+    <br>
+    {% endfor %}
+{% endblock %}

templates/study/new.html

@@ -0,0 +1,25 @@
+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %} 新建文章 {% endblock %}
+
+{% block content %}
+
+<form method="post">
+    <div class="form-group">
+        <label for="title">标题</label>
+        <input type="text" name="title" placeholder="标题" class="form-control" value="{{ request.form['title'] }}">
+        </inpit>
+    </div>
+    <div class="form-group">
+        <label for="content">内容</label>
+        <textarea name="content" placeholder="文章内容" class="form-control">{{ request.form['content'] }}</textarea>
+    </div>
+    <div class="form-group">
+        <button type="submit" class="btn btn-primary">提交</button>
+    </div>
+</form>    
+
+    
+{% endblock %}

templates/study/posts.html

@@ -0,0 +1,19 @@
+{# 引入base #}
+{% extends 'study/base.html' %}
+
+{# 网站标签 #}
+{% block title %} {{ posts['title'] }} {% endblock %}
+
+{% block content %}
+<h1>{{ posts['title'] }}</h1>
+<span>{{ posts['created_8'] }}</span>
+<a href="./{{ posts['id'] }}/edit">
+    <span>编辑</span>
+</a>
+<hr>
+
+<p>{{ posts['content'] }}</p>
+    
+
+    
+{% endblock %}