import tbpy

tbpy.init()

ss=tbpy.get_history_n(symbol=[\'ur309.CZCE\'], frequency=\'2m\', count=10, flag=tbpy.QuoteFlag.RolloverBackWard|tbpy.QuoteFlag.OnlyNight, fields=[\'open\', \'high\', \'time\'], timeout=\'60s\')

print(ss)

查不出来，换上期所的就可以