2019-03-15 使用Request POST获取CNABS网站上JSON格式的表格数据，并解析出来用xlwt写到Excel中

import requests
import xlwt

url = 'https://v1.cn-abs.com/ajax/ChartMarketHandler.ashx'
headers={
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36'
}
# 每个交易场所每一年的发行金额
def get_marketInventory():

    FromData={
        'type':'marketInventory'
    }
    rep=requests.post(url,data=FromData).json()
    for i in rep:
        # print(i['SeriesName'],i['Points'])
        for j in i['Points']:
            result={
                '交易场所':i['SeriesName'],
                '发行年份':j['X'],
                '发行金额':j['Y']
            }
            yield result
def parse_marketInventory():
    wb = xlwt.Workbook()
    sheet = wb.add_sheet('marketInventory')
    sheet.write(0, 0, label='交易场所')
    sheet.write(0, 1, label='发行年份')
    sheet.write(0, 2, label='发行金额')
    # sheet.write()
    result = get_marketInventory()
    # print(result)
    i = 1
    for res in result:
        # print(res)
        sheet.write(i, 0, label=res['交易场所'])
        sheet.write(i, 1, label=res['发行年份'])
        sheet.write(i, 2, label=res['发行金额'])
        wb.save('marketInventory.xls')
        i = i + 1
    # print('共有' + str(i) + '行数据')
# 各个资产类型每一年的发行金额
def get_marketTotal():
    FromData = {
        'type': 'marketTotal'
    }
    rep = requests.post(url, data=FromData).json()
    for i in rep:
        # print(i['SeriesName'],i['Points'])
        result = {
            '资产类型': i['SeriesName'],
            '发行金额':""+str(i['Points'][0]['Y'][0]).replace("[","'").replace("]","'"),
            '存量金额':""+str(i['Points'][1]['Y'][0]).replace("[","'").replace("]","'")
        }
        yield result
def parse_marketTotal():
    wb = xlwt.Workbook()
    sheet = wb.add_sheet('marketTotal')
    sheet.write(0, 0, label='资产类型')
    sheet.write(0, 1, label='发行金额')
    sheet.write(0, 2, label='存量金额')
    # sheet.write()
    result = get_marketTotal()
    i = 1
    for res in result:
        # print(res)
        sheet.write(i, 0, label=res['资产类型'])
        sheet.write(i, 1, label=float(res['发行金额']))
        sheet.write(i, 2, label=float(res['存量金额']))
        wb.save('marketTotal.xls')
        i = i + 1
    # print('共有' + str(i) + '行数据')
if __name__ == '__main__':
    parse_marketInventory()
    parse_marketTotal()