Interactive Brokers Python多符号请求

from ibapi.client import EClient
from ibapi.wrapper import EWrapper
from ibapi.contract import Contract

class MyWrapper(EWrapper):
    def __init__(self):
        super().__init__()

    def error(self, reqId, errorCode, errorString):
        print("Error: ", reqId, errorCode, errorString)

    def tickPrice(self, reqId, tickType, price, attrib):
        print("Tick Price. Ticker Id:", reqId, "tickType:", tickType, "Price:", price)

    # 其他重写的方法...

class MyClient(EClient):
    def __init__(self, wrapper):
        super().__init__(wrapper)

wrapper = MyWrapper()
client = MyClient(wrapper)
client.connect("127.0.0.1", 7497, clientId=0)

contract = Contract()
contract.symbol = "AAPL"
contract.secType = "STK"
contract.exchange = "SMART"
contract.currency = "USD"

client.reqMktData(1, contract, "", False, False, [])

client.run()