$.ajax({

  　　  url:'http://127.0.0.1:5000/calc',

  　　  type : 'post',

  　　  dataType:'json',

        headers: {

            "Content-Type": "application/json;charset=utf-8"

        },

        contentType:'application/json; charset=utf-8',

        data:JSON.stringify({D:D,q:q,ls:ls,Lz:Lz,l:l,Uz:Uz,u:u,y:y,P:P,h1:h1,data_list:data_lists}),

  　　  success:function(data){

          $("#finally").show();

      }

})

from flask import Flask, render_template, request, make_response

import json

import light_calc

app = Flask(__name__)

app.debug = True

@app.route('/', methods=['POST', 'GET'])

def main():

    return render_template('test_inputs.html')

@app.route('/calc', methods=['POST'])

def calc():

    data_list = []

    data = json.loads(request.get_data(as_text=True))   # request.get_data(as_text=True) ： 获取前端POST请求传过来的 json 数据

    for key, value in data.items():

        if value == '':

            data[key] = 0

    for key, value in data.items():

        if type(value) == str and value != 'i':

            data[key] = float(value)

    for i in data['data_list']:

        new_dict = {}

        new_dict['r'] = float(i['r'])

        new_dict['d'] = float(i['d'])

        new_dict['n'] = float(i['n'])

        new_dict['n_2'] = float(i['n_2'])

        data_list.append(new_dict)

    print(data)

    print(data_list)

    try:

        result = light_calc.main(data['D'], data['q'], data['ls'], data['Lz'], data['Uz'], data['l'], data['u'], data['y'],

                             data['P'], data['h1'], data_list)

        resp = make_response(result)

        resp.headers['Content-Type'] = 'text/json'

        return result

    except Exception as e:

        print(e)

        return '{"status":"500"}'

if __name__ == '__main__':

    app.run()