怎样限制在同一根K线时的开仓次数？

试试用变量锁定开仓的次数，然后每次k更新时初始化变量

from tqsdk import TqApi
number_of_open = 0 #记录开仓次数
allow_open = 3 #允许的开仓次数
#
api = TqApi(auth="信易账户,账户密码")
SYMBOL = 'SHFE.rb2101'
klines = api.get_kline_serial(SYMBOL, 60*60)
try:
    while True:
        api.wait_update()
        if api.is_changing(klines.iloc[-1], "datetime"):
            number_of_open = 0
        # 假设开仓条件为True
        if True and number_of_open < allow_open:
            order = api.insert_order(SYMBOL, "BUY", "OPEN", 2, 5000)
            number_of_open += 1
except KeyboardInterrupt:
    api.close()