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26 lines
757 B
Python
26 lines
757 B
Python
"""获取市场股票/证券总数命令。"""
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import struct
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from .._binary import unpack_from
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from ..models.enums import Market
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from .base import BaseCommand
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class GetSecurityCountCmd(BaseCommand[int]):
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"""返回指定市场的证券总数。
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心跳命令也可复用此命令（pytdx 用随机 market 发心跳）。
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"""
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def __init__(self, market: Market) -> None:
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self.market = market
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def build_request(self) -> bytes:
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header = bytes.fromhex("0c0c186c000108000800 4e04".replace(" ", ""))
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return header + struct.pack("<H", int(self.market)) + b"\x75\xc7\x33\x01"
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def parse_response(self, body: bytes) -> int:
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(count,) = unpack_from("<H", body, 0, "security_count")
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return int(count)
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