feat(数据可视化技术): 添加网店运营大屏前端和后端基础结构

- 新建前端项目配置文件和样式文件
- 创建后端 Flask 应用和数据库连接管理器
- 定义多个 API 路由以获取销售数据

数据可视化技术/20250513/task.ipynb

@@ -0,0 +1,57 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "id": "initial_id",
+   "metadata": {
+    "collapsed": true,
+    "ExecuteTime": {
+     "end_time": "2025-05-13T02:49:05.718408Z",
+     "start_time": "2025-05-13T02:49:05.678953Z"
+    }
+   },
+   "source": [
+    "from pyecharts.charts import Bar\n",
+    "from pyecharts import options as opts\n",
+    "from pyecharts.globals import ThemeType"
+   ],
+   "outputs": [],
+   "execution_count": 1
+  },
+  {
+   "metadata": {},
+   "cell_type": "code",
+   "outputs": [],
+   "execution_count": null,
+   "source": [
+    "bar = (\n",
+    "    Bar(init_opts=opts.InitOpts(theme=ThemeType.LIGHT))\n",
+    "    .add_xaxis(['哲学','历史','教育','科技','文学','经济'])\n",
+    "    .add_yaxis('商家 A',[25,20,36,40,75,90])\n",
+    ")"
+   ],
+   "id": "e254f05719aaae60"
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}