我这样将1分钟数据存入本地csv文件是否正确？运行起来怎么没效果

import pandas as pd
from tqsdk import TqApi, TqAuth
 api = TqApi(web_gui=True, debug="debug.log", auth=TqAuth("rrr", "rrrrr"))
quote = api.get_quote("SHFE.rb2310")
ticks = api.get_tick_serial("SHFE.rb2310")
klines = api.get_kline_serial("SHFE.rb2310", 60)
 df = pd.DataFrame()
 minute = int(ticks["datetime"] // 60)
while True:
    if minute not in df.index:
        df.loc[minute] = [ticks["last_price"], ticks["volume"], ticks["open_interest"]]
        df.to_csv("data.csv", sep=",", mode='a', header=False)
    klines = api.get_kline_serial("SHFE.rb2310", 60)
    ticks = api.get_tick_serial("SHFE.rb2310")
    minute = int(ticks["datetime"] // 60)