一，环境介绍
语言环境：Python3.8
开发工具：PyCharm
开发技术：Flask+Echart等
二，项目简介
本项目基于Python3.8开发实现。系统包含两 个部分，一部分是数据爬虫部分，主要抓取瓜子二手车网站平台公开的二手车信息数据，并存入csv文件中。一部分是数据分析和展示，通过程序读取csv文件中的数据，并将其展示到HTML网页上，通过图形化报表工具对其进行可视化的数据展示。程序基于Flask开发框架实现了WEB开发的部分，运行后直接在浏览器输入 http://localhost:5000 访问即可查看数据分析的结果。
三，系统展示
系统首页
车辆信息列表分析展示
二手车各城市数据分析柱形报表图
车辆上牌时间统计图
二手车价格对比图
四，核心代码展示
from flask import Flask, render_template import csv app = Flask(__name__) # 指定文件名，然后使用 with open() as 打开 @app.route('/') def home(): return render_template("index.html") @app.route('/index') def index(): return render_template("index.html") @app.route('/cars') def cars(): dataList = [] filename = 'data.csv' with open(filename, 'r', encoding='utf-8') as f: # 创建阅读器（调用csv.reader()将前面存储的文件对象最为实参传给它） reader = csv.reader(f) # 调用了next()一次，所以这边只调用了文件的第一行，并将头文件存储在header_row中 header_row = next(reader) for row in reader: dataList.append(row) return render_template("cars.html", cars=dataList) @app.route('/city') def city(): return render_template("city.html") @app.route('/year') def year(): return render_template("year.html") @app.route('/carsDetail') def carsDetal(): return render_template("carsDetail.html") if __name__ == '__main__': app.run()
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta content="width=device-width, initial-scale=1.0" name="viewport"> <title>二手车数据分析平台</title> <meta content="" name="descriptison"> <meta content="" name="keywords"> <!-- Favicons --> <link href="static/assets/img/favicon.png" rel="icon"> <link href="static/assets/img/apple-touch-icon.png" rel="apple-touch-icon"> <!-- Google Fonts --> <link href="https://fonts.googleapis.com/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i|Raleway:300,300i,400,400i,600,600i,700,700i,900" rel="stylesheet"> <!-- Vendor CSS Files --> <link href="static/assets/vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet"> <link href="static/assets/vendor/icofont/icofont.min.css" rel="stylesheet"> <link href="static/assets/vendor/boxicons/css/boxicons.min.css" rel="stylesheet"> <link href="static/assets/vendor/animate.css/animate.min.css" rel="stylesheet"> <link href="static/assets/vendor/venobox/venobox.css" rel="stylesheet"> <link href="static/assets/vendor/aos/aos.css" rel="stylesheet"> <!-- Template Main CSS File --> <link href="static/assets/css/style.css" rel="stylesheet"> </head> <body> <!-- ======= Header ======= --> <header id="header"> <div class="container"> <div class="logo float-left"> <h1 class="text-light"><a href="temp.html"><span></span></a></h1> <!-- Uncomment below if you prefer to use an image logo --> <!-- <a href="temp.html"><img src="static/assets/img/logo.png" alt="" class="img-fluid"></a>--> </div> <nav class="nav-menu float-right d-none d-lg-block"> <ul> <li class="active"><a href="/index">首页</a></li> <li><a href="/cars">车辆信息</a></li> <li><a href="/city">城市分布</a></li> <li><a href="/year">车辆上牌时间</a></li> <li><a href="/carsDetail">价格对比</a></li> </ul> </nav><!-- .nav-menu --> </div> </header><!-- End Header --> <!-- ======= Our Team Section ======= --> <section id="team" class="team"> <div class="container"> <div class="section-title"> <h2>二手车数据分析平台</h2> <p></p> </div> <!-- ======= Counts Section ======= --> <section class="counts section-bg"> <div class="container"> <div class="row"> <div class="col-lg-3 col-md-6 text-center" data-aos="fade-up"> <a href="/cars"> <div class="count-box"> <i class="icofont-document-folder" style="color: #20b38e;"></i> <span data-toggle="counter-up">13626</span> <p>车辆信息</p> </div> </a> </div> <div class="col-lg-3 col-md-6 text-center" data-aos="fade-up" data-aos-delay="200"> <a href="/city"> <div class="count-box"> <i class="icofont-document-folder" style="color: #20b38e;"></i> <span data-toggle="counter-up">8</span> <p>目标城市分布</p> </div> </a> </div> <div class="col-lg-3 col-md-6 text-center" data-aos="fade-up" data-aos-delay="400"> <a href="/year"> <div class="count-box"> <i class="icofont-document-folder" style="color: #20b38e;"></i> <span data-toggle="counter-up">10</span> <p>上牌时间</p> </div> </a> </div> <div class="col-lg-3 col-md-6 text-center" data-aos="fade-up" data-aos-delay="600"> <a href="/carsDetail"> <div class="count-box"> <i class="icofont-document-folder" style="color: #20b38e;"></i> <span data-toggle="counter-up">2</span> <p>价格对比</p> </div> </a> </div> </div> </div> </section><!-- End Counts Section --> </div> </section><!-- End Our Team Section --> <a href="#" class="back-to-top"><i class="icofont-simple-up"></i></a> <!-- Vendor JS Files --> <script src="static/assets/vendor/jquery/jquery.min.js"></script> <script src="static/assets/vendor/bootstrap/js/bootstrap.bundle.min.js"></script> <script src="static/assets/vendor/jquery.easing/jquery.easing.min.js"></script> <script src="static/assets/vendor/php-email-form/validate.js"></script> <script src="static/assets/vendor/jquery-sticky/jquery.sticky.js"></script> <script src="static/assets/vendor/venobox/venobox.min.js"></script> <script src="static/assets/vendor/waypoints/jquery.waypoints.min.js"></script> <script src="static/assets/vendor/counterup/counterup.min.js"></script> <script src="static/assets/vendor/isotope-layout/isotope.pkgd.min.js"></script> <script src="static/assets/vendor/aos/aos.js"></script> <!-- Template Main JS File --> <script src="static/assets/js/main.js"></script> </body> </html>
四，项目总结
本项目实现结构清晰，功能完整，可以做毕业设计或课程设计使用。
