建议多看看文档，或者可以直接运行示例代码看看
https://doc.shinnytech.com/pysdk/latest/reference/tqsdk.api.html#tqsdk.api.TqApi.get_kline_serial
https://doc.shinnytech.com/pysdk/latest/usage/mddatas.html#k
https://doc.shinnytech.com/pysdk/latest/usage/framework.html#wait-update
https://doc.shinnytech.com/pysdk/latest/demo/tutorial/t30.html
west 已回答的问题 2020年3月11日