text: from flask import Flask, request, jsonify
  from book_cp import compare_price
  
  app = Flask(__name__)
  
  @app.route('/')
  def index():
      return app.send_static_file('index.html')
  
  @app.route('/result.html')
  def result():
      return app.send_static_file('result.html')
  
  # 比价接口, post参数格式json, 需要isbn书号
  @app.route('/compare',methods=['post'])
  def compare():
      q_json = request.get_json() #得到post提交过来的json
  
      # 检查请求参数是否完整
      if 'isbn' not in q_json:
          return jsonify(msg="缺失isbn参数")
  
      # 返回比价查询的结果
      return jsonify(compare_price(q_json["isbn"]))
  
  app.run()