import baostock as bs
import pandas as pd

import datetime
import sys

code = str(sys.argv[1])

#### 登陆系统 ####
lg = bs.login()
# 显示登陆返回信息
print('login respond error_code:'+lg.error_code)
print('login respond  error_msg:'+lg.error_msg)

#### 获取历史K线数据 ####
# 详细指标参数，参见“历史行情指标参数”章节
rs = bs.query_history_k_data_plus(code,
    "date,code,open,high,low,close,preclose,volume,amount,adjustflag,turn,tradestatus,pctChg,peTTM,pbMRQ,psTTM,pcfNcfTTM,isST",
    start_date='2020-01-01', end_date=datetime.datetime.now().strftime('%Y-%m-%d'), 
    frequency="d", adjustflag="3") #frequency="d"取日k线，adjustflag="3"默认不复权
print('query_history_k_data_plus respond error_code:'+rs.error_code)
print('query_history_k_data_plus respond  error_msg:'+rs.error_msg)

#### 打印结果集 ####
data_list = []
while (rs.error_code == '0') & rs.next():
    # 获取一条记录，将记录合并在一起
    data_list.append(rs.get_row_data())
result = pd.DataFrame(data_list, columns=rs.fields)
#### 结果集输出到csv文件 ####
result.to_csv("datasets/{code}.csv".format(code=code), encoding="utf-8", index=False)
print(result)

#### 登出系统 ####
bs.logout()