621 lines
24 KiB
Python
621 lines
24 KiB
Python
#!/usr/bin/env python3
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
定投交易机器人
|
|
|
|
功能:
|
|
1. 从JSON配置文件读取交易指令
|
|
2. 支持按日期执行多个交易(*表示每天执行)
|
|
3. 支持多种订单类型 (limit, market, convert)
|
|
4. 当无price时自动获取实时价格作为限价
|
|
5. limit订单支持只提供quoteOrderQty自动计算quantity
|
|
6. 证券代码映射功能
|
|
7. 完整的交易记录和日志
|
|
|
|
使用示例:
|
|
python main.py
|
|
"""
|
|
|
|
import csv
|
|
import logging
|
|
import os
|
|
import time
|
|
import json
|
|
from pathlib import Path
|
|
from datetime import datetime, date
|
|
from typing import Dict, Any, Optional, Tuple, List
|
|
import git
|
|
import ccxt
|
|
|
|
os.makedirs("output", exist_ok=True)
|
|
|
|
# 配置日志
|
|
logging.basicConfig(
|
|
level=logging.INFO,
|
|
format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
|
|
handlers=[
|
|
logging.FileHandler("output/trading_bot.log", encoding="utf-8"),
|
|
logging.StreamHandler(),
|
|
],
|
|
)
|
|
|
|
|
|
class BotSpotMarket:
|
|
"""市场数据查询类"""
|
|
|
|
def __init__(self, exchange: ccxt.Exchange):
|
|
self.exchange = exchange
|
|
self.logger = logging.getLogger(self.__class__.__module__ + '.' + self.__class__.__name__)
|
|
try:
|
|
self.exchange.load_markets()
|
|
self.logger.info("加载市场信息成功")
|
|
except Exception as e:
|
|
self.logger.error("加载市场信息失败: %s", str(e))
|
|
|
|
def get_exchange_info(self, symbol: str) -> Optional[Dict[str, Any]]:
|
|
"""获取交易对信息,返回格式与原始代码兼容"""
|
|
try:
|
|
self.logger.info("查询交易对信息: %s", symbol)
|
|
if symbol not in self.exchange.markets:
|
|
self.logger.warning("市场信息中未找到 %s,尝试重新加载", symbol)
|
|
self.exchange.load_markets()
|
|
market = self.exchange.markets.get(symbol)
|
|
if not market:
|
|
self.logger.error("交易对 %s 不存在", symbol)
|
|
return None
|
|
|
|
exchange_info = {
|
|
"symbols": [
|
|
{
|
|
"baseAssetPrecision": market["precision"]["amount"],
|
|
"quoteAmountPrecision": str(market["limits"]["cost"]["min"] or 0),
|
|
}
|
|
]
|
|
}
|
|
self.logger.info("获取交易对信息成功: %s", symbol)
|
|
return exchange_info
|
|
except Exception as e:
|
|
self.logger.error("查询交易所信息失败: %s", str(e))
|
|
return None
|
|
|
|
def get_price(self, symbol: str) -> Optional[float]:
|
|
"""获取指定交易对的当前价格"""
|
|
try:
|
|
self.logger.info("查询交易对价格: %s", symbol)
|
|
ticker = self.exchange.fetch_ticker(symbol)
|
|
if not ticker or "last" not in ticker:
|
|
self.logger.error("获取价格数据失败: %s", ticker)
|
|
return None
|
|
price = float(ticker["last"])
|
|
self.logger.info("获取价格成功: %s = %f", symbol, price)
|
|
return price
|
|
except Exception as e:
|
|
self.logger.error("查询价格失败: %s", str(e))
|
|
return None
|
|
|
|
|
|
class BotSpotTrade:
|
|
"""现货交易类"""
|
|
|
|
ORDER_TYPE_REQUIREMENTS = {
|
|
"limit": ["quantity", "quoteOrderQty"],
|
|
"market": ["quantity", "quoteOrderQty"],
|
|
"convert": ["quoteOrderQty", "quantity"]
|
|
}
|
|
|
|
def __init__(self, exchange: ccxt.Exchange, symbol_mapping: Dict[str, str], config_file_name: str):
|
|
self.exchange = exchange
|
|
self.market = BotSpotMarket(exchange)
|
|
self.csv_file = f"output/{config_file_name}.csv"
|
|
self.symbol_mapping = symbol_mapping
|
|
self.logger = logging.getLogger(self.__class__.__module__ + '.' + self.__class__.__name__)
|
|
|
|
def _api_get_balance(self) -> str:
|
|
try:
|
|
self.logger.info("查询账户余额")
|
|
balance = self.exchange.fetch_balance()
|
|
free = balance.get("free", {})
|
|
balances = ""
|
|
for asset, amount in free.items():
|
|
if amount and amount > 0:
|
|
balances += f"{amount} {asset} "
|
|
self.logger.info("获取账户余额成功")
|
|
return balances
|
|
except Exception as e:
|
|
self.logger.error("查询账户信息失败: %s", str(e))
|
|
return f"ERROR: {str(e)}"
|
|
|
|
def _api_get_order(self, symbol: str, order_id: str) -> Optional[Dict[str, Any]]:
|
|
try:
|
|
self.logger.info("查询订单状态, 订单ID: %s", order_id)
|
|
order = self.exchange.fetch_order(order_id, symbol)
|
|
self.logger.info("订单状态: %s", order.get("status"))
|
|
return order
|
|
except Exception as e:
|
|
self.logger.error("查询订单失败: %s", str(e))
|
|
return None
|
|
|
|
def _tool_map_symbol(self, symbol: str) -> str:
|
|
return self.symbol_mapping.get(symbol, symbol)
|
|
|
|
def _tool_validate_order_params(
|
|
self, order_type: str, params: Dict[str, Any], side: Optional[str] = None
|
|
) -> Tuple[bool, str]:
|
|
if order_type == "convert":
|
|
if side == "buy":
|
|
if "quoteOrderQty" not in params and "quantity" not in params:
|
|
return False, "convert订单(买入)需要quoteOrderQty或quantity参数"
|
|
elif side == "sell":
|
|
if "quantity" not in params and "quoteOrderQty" not in params:
|
|
return False, "convert订单(卖出)需要quantity或quoteOrderQty参数"
|
|
return True, ""
|
|
|
|
required_params = self.ORDER_TYPE_REQUIREMENTS.get(order_type, [])
|
|
if not required_params:
|
|
return False, f"未知的订单类型: {order_type}"
|
|
|
|
if order_type == "limit":
|
|
if "quantity" not in params and "quoteOrderQty" not in params:
|
|
return False, "limit订单需要quantity或quoteOrderQty参数"
|
|
return True, ""
|
|
|
|
if order_type == "market":
|
|
if "quantity" not in params and "quoteOrderQty" not in params:
|
|
return False, "market订单需要quantity或quoteOrderQty参数"
|
|
return True, ""
|
|
|
|
missing_params = [p for p in required_params if p not in params]
|
|
if missing_params:
|
|
return False, f"{order_type}订单缺少必需参数: {', '.join(missing_params)}"
|
|
return True, ""
|
|
|
|
def _tool_sci_to_decimal(self, num, precision = 30):
|
|
if isinstance(num, str):
|
|
num = float(num)
|
|
result = f"{num:.{precision}f}"
|
|
result = result.rstrip('0').rstrip('.')
|
|
return result
|
|
|
|
def _tool_record_transaction(self, order_data: Dict[str, Any], is_convert: bool = False) -> bool:
|
|
try:
|
|
original_symbol = order_data["symbol"]
|
|
mapped_symbol = self._tool_map_symbol(original_symbol)
|
|
order_id = order_data["id"]
|
|
executed_qty = self._tool_sci_to_decimal(order_data.get("filled", 0.0))
|
|
cummulative_quote_qty = self._tool_sci_to_decimal(order_data.get("cost", 0.0))
|
|
side = order_data["side"]
|
|
balances = self._api_get_balance()
|
|
|
|
trade_type = "买入" if side == "buy" else "卖出"
|
|
timestamp = datetime.fromtimestamp(order_data["timestamp"] / 1000).strftime("%Y-%m-%dT%H:%M")
|
|
|
|
if is_convert:
|
|
note = f"DCA Order ID (Convert): {order_id}"
|
|
else:
|
|
note = f"DCA Order ID: {order_id}"
|
|
|
|
row = [
|
|
timestamp,
|
|
trade_type,
|
|
mapped_symbol,
|
|
executed_qty,
|
|
cummulative_quote_qty,
|
|
"资金账户",
|
|
"CEX",
|
|
note,
|
|
balances,
|
|
]
|
|
|
|
file_exists = False
|
|
try:
|
|
with open(self.csv_file, "r", encoding="utf-8") as f:
|
|
file_exists = True
|
|
except FileNotFoundError:
|
|
pass
|
|
|
|
with open(self.csv_file, "a", newline="", encoding="utf-8") as f:
|
|
writer = csv.writer(f)
|
|
if not file_exists:
|
|
writer.writerow([
|
|
"日期", "类型", "证券代码", "份额", "净额",
|
|
"现金账户", "目标账户", "备注", "balances",
|
|
])
|
|
writer.writerow(row)
|
|
|
|
self.logger.info("交易记录成功, 订单ID: %s", order_id)
|
|
return True
|
|
except Exception as e:
|
|
self.logger.error("记录交易失败: %s", str(e))
|
|
return False
|
|
|
|
def _trade_convert(self, symbol: str, side: str, **kwargs) -> Optional[Dict[str, Any]]:
|
|
"""闪兑交易:直接币币兑换,不走订单簿"""
|
|
if side not in ["buy", "sell"]:
|
|
self.logger.error("无效的交易方向: %s", side)
|
|
return None
|
|
|
|
quote_order_qty = kwargs.get("quoteOrderQty")
|
|
quantity = kwargs.get("quantity")
|
|
|
|
try:
|
|
base_currency, quote_currency = symbol.split("/")
|
|
except ValueError:
|
|
self.logger.error("无效的交易对格式: %s(应为 BASE/QUOTE 格式)", symbol)
|
|
return None
|
|
|
|
if side == "buy":
|
|
from_currency = quote_currency
|
|
to_currency = base_currency
|
|
if quote_order_qty is not None:
|
|
amount_str = quote_order_qty
|
|
else:
|
|
price = self.market.get_price(symbol)
|
|
if price is None:
|
|
self.logger.error("无法获取实时价格来估算花费金额")
|
|
return None
|
|
amount_str = str(float(quantity) * price)
|
|
else:
|
|
from_currency = base_currency
|
|
to_currency = quote_currency
|
|
if quantity is not None:
|
|
amount_str = quantity
|
|
else:
|
|
price = self.market.get_price(symbol)
|
|
if price is None:
|
|
self.logger.error("无法获取实时价格来估算卖出数量")
|
|
return None
|
|
amount_str = str(float(quote_order_qty) / price)
|
|
|
|
try:
|
|
amount = float(amount_str)
|
|
except (ValueError, TypeError):
|
|
self.logger.error("无效的金额: %s", amount_str)
|
|
return None
|
|
|
|
self.logger.info("开始闪兑: %s %s → %s", amount, from_currency, to_currency)
|
|
|
|
try:
|
|
quote = self.exchange.fetchConvertQuote(from_currency, to_currency, amount)
|
|
self.logger.info(
|
|
"获取闪兑报价成功: %s %s → %s %s, 报价ID: %s",
|
|
from_currency, amount, to_currency,
|
|
quote.get("toAmount"), quote.get("id"),
|
|
)
|
|
except Exception as e:
|
|
self.logger.error("获取闪兑报价失败: %s", str(e))
|
|
return None
|
|
|
|
if not quote or not quote.get("id"):
|
|
self.logger.error("闪兑报价无效: %s", quote)
|
|
return None
|
|
|
|
quote_id = quote["id"]
|
|
|
|
try:
|
|
convert_trade = self.exchange.createConvertTrade(
|
|
quote_id, from_currency, to_currency, amount
|
|
)
|
|
self.logger.info("创建闪兑交易成功: %s", convert_trade)
|
|
except Exception as e:
|
|
self.logger.error("创建闪兑交易失败: %s", str(e))
|
|
return None
|
|
|
|
if not convert_trade or not convert_trade.get("id"):
|
|
self.logger.error("闪兑交易未返回有效的ID: %s", convert_trade)
|
|
return None
|
|
|
|
trade_id = convert_trade["id"]
|
|
|
|
trade_detail = None
|
|
try:
|
|
trade_detail = self.exchange.fetchConvertTrade(trade_id, from_currency)
|
|
self.logger.info("查询闪兑结果成功: %s", trade_detail)
|
|
except Exception as e:
|
|
self.logger.warning("查询闪兑结果失败: %s(使用创建返回的数据)", str(e))
|
|
|
|
final_data = trade_detail or convert_trade
|
|
|
|
record_data = {
|
|
"symbol": symbol,
|
|
"id": trade_id,
|
|
"filled": final_data.get("toAmount", 0.0),
|
|
"cost": final_data.get("fromAmount", 0.0),
|
|
"side": side,
|
|
"timestamp": final_data.get("timestamp", int(time.time() * 1000)),
|
|
}
|
|
|
|
if not self._tool_record_transaction(record_data, is_convert=True):
|
|
self.logger.error("闪兑交易记录失败")
|
|
|
|
self.logger.info("闪兑交易完成: %s %s → %s, 交易ID: %s", side, from_currency, to_currency, trade_id)
|
|
return final_data
|
|
|
|
def trade(self, symbol: str, order_type: str, side: str, **kwargs) -> Optional[Dict[str, Any]]:
|
|
is_valid, error_msg = self._tool_validate_order_params(order_type, kwargs, side)
|
|
if not is_valid:
|
|
self.logger.error("订单参数验证失败: %s", error_msg)
|
|
return None
|
|
|
|
if order_type == "convert":
|
|
return self._trade_convert(symbol, side, **kwargs)
|
|
|
|
if side not in ["buy", "sell"]:
|
|
self.logger.error("无效的交易方向: %s", side)
|
|
return None
|
|
|
|
processed_kwargs = kwargs.copy()
|
|
clean_price = processed_kwargs.get("price")
|
|
|
|
if order_type == "limit" and "price" not in processed_kwargs:
|
|
current_price = self.market.get_price(symbol)
|
|
if current_price is None:
|
|
self.logger.error("无法获取实时价格,交易取消")
|
|
return None
|
|
clean_price = current_price
|
|
# 防止挂单不成交
|
|
if side == "buy":
|
|
processed_kwargs["price"] = current_price * 1.001 # 买入加价0.1%
|
|
elif side == "sell":
|
|
processed_kwargs["price"] = current_price * 0.999 # 卖出减价0.1%
|
|
self.logger.info("使用调整0.1%%后价格作为限价: %f", processed_kwargs["price"])
|
|
|
|
if (
|
|
order_type == "limit"
|
|
and "quoteOrderQty" in processed_kwargs
|
|
and "quantity" not in processed_kwargs
|
|
):
|
|
try:
|
|
exchange_info = self.market.get_exchange_info(symbol)
|
|
if not exchange_info:
|
|
return None
|
|
quote_amount = float(processed_kwargs["quoteOrderQty"])
|
|
if clean_price is None:
|
|
self.logger.error("无法获取价格来计算数量")
|
|
return None
|
|
price_for_calc = float(clean_price)
|
|
quantity = quote_amount / price_for_calc
|
|
self.logger.info("根据quoteOrderQty计算quantity: %f", quantity)
|
|
processed_kwargs["quantity"] = str(quantity)
|
|
processed_kwargs.pop("quoteOrderQty")
|
|
except (ValueError, KeyError, TypeError) as e:
|
|
self.logger.error("计算quantity失败: %s", str(e))
|
|
return None
|
|
|
|
amount = processed_kwargs.get("quantity")
|
|
price = processed_kwargs.get("price")
|
|
if amount is not None:
|
|
amount = float(amount)
|
|
if price is not None:
|
|
price = float(price)
|
|
|
|
params = {}
|
|
if order_type == "market" and "quoteOrderQty" in processed_kwargs:
|
|
current_price = self.market.get_price(symbol)
|
|
if current_price is None:
|
|
self.logger.error("无法获取实时价格,交易取消")
|
|
return None
|
|
clean_price = current_price
|
|
amount = float(processed_kwargs["quoteOrderQty"]) / clean_price
|
|
|
|
is_valid, error_msg = self._tool_validate_order_params(order_type, processed_kwargs, side)
|
|
if not is_valid:
|
|
self.logger.error("订单参数验证失败: %s", error_msg)
|
|
return None
|
|
|
|
try:
|
|
self.logger.info("准备下单 %s %s 订单, 交易对: %s", side, order_type, symbol)
|
|
self.logger.info("订单参数: symbol=%s, type=%s, side=%s, amount=%s, price=%s, params=%s",
|
|
symbol, order_type, side, amount, price, params)
|
|
|
|
order = self.exchange.create_order(
|
|
symbol=symbol,
|
|
type=order_type,
|
|
side=side,
|
|
amount=amount,
|
|
price=price,
|
|
params=params,
|
|
)
|
|
|
|
order_id = order.get("id")
|
|
if not order_id:
|
|
self.logger.error("下单失败: 未获取到订单ID")
|
|
self.logger.error(order)
|
|
return None
|
|
|
|
self.logger.info("订单创建成功, 订单ID: %s", order_id)
|
|
self.logger.info("等待1秒后查询订单状态...")
|
|
time.sleep(1)
|
|
order_detail = self._api_get_order(symbol, order_id)
|
|
if not order_detail:
|
|
self.logger.error("获取订单详情失败")
|
|
return None
|
|
|
|
retry_count = 0
|
|
filled_statuses = ("closed", "filled")
|
|
while order_detail.get("status", "").lower() not in filled_statuses and retry_count < 10:
|
|
retry_count += 1
|
|
self.logger.info(
|
|
"订单未完成(状态: %s),等待1秒后第%s次重试查询...",
|
|
order_detail.get("status", "UNKNOWN"),
|
|
retry_count,
|
|
)
|
|
time.sleep(1)
|
|
order_detail = self._api_get_order(symbol, order_id)
|
|
if not order_detail:
|
|
self.logger.error("获取订单详情失败")
|
|
return None
|
|
|
|
if order_detail.get("status", "").lower() in filled_statuses:
|
|
if not self._tool_record_transaction(order_detail):
|
|
self.logger.error("交易记录失败")
|
|
else:
|
|
self.logger.warning(
|
|
"订单未完成(状态: %s),未被记录到CSV。订单ID: %s",
|
|
order_detail.get("status", "UNKNOWN"),
|
|
order_id,
|
|
)
|
|
|
|
return order_detail
|
|
|
|
except Exception as e:
|
|
self.logger.error("交易执行失败: %s", str(e))
|
|
return None
|
|
|
|
|
|
class TradingConfig:
|
|
"""交易配置管理类"""
|
|
def __init__(self, config_file: str = "config/trading_config.json"):
|
|
self.config_file = config_file
|
|
self.logger = logging.getLogger(self.__class__.__module__ + '.' + self.__class__.__name__)
|
|
self.config_data = self._load_config()
|
|
|
|
def _load_config(self) -> Dict[str, Any]:
|
|
try:
|
|
with open(self.config_file, "r", encoding="utf-8") as f:
|
|
config = json.load(f)
|
|
self.logger.info("成功加载配置文件: %s", self.config_file)
|
|
return config
|
|
except FileNotFoundError:
|
|
self.logger.error("配置文件不存在: %s", self.config_file)
|
|
return {}
|
|
except json.JSONDecodeError:
|
|
self.logger.error("配置文件格式错误,不是有效的JSON")
|
|
return {}
|
|
except Exception as e:
|
|
self.logger.error("加载配置文件时出错: %s", str(e))
|
|
return {}
|
|
|
|
def get_today_trades(self) -> List[Dict[str, Any]]:
|
|
if not self.config_data or "trades" not in self.config_data:
|
|
return []
|
|
today = date.today().isoformat()
|
|
today_trades = []
|
|
for trade in self.config_data["trades"]:
|
|
if "execute_dates" not in trade:
|
|
continue
|
|
if "*" in trade["execute_dates"]:
|
|
today_trades.append(trade)
|
|
continue
|
|
if today in trade["execute_dates"]:
|
|
today_trades.append(trade)
|
|
return today_trades
|
|
|
|
|
|
def build_ccxt_exchange(api_config: Dict[str, Any], exchange_id: str) -> ccxt.Exchange:
|
|
"""
|
|
根据配置文件和交易所ID构建 ccxt 交易所实例
|
|
:param api_config: 包含 api_key, api_secret 等字段的字典
|
|
:param exchange_id: ccxt 交易所标识符(小写),如 "mexc", "binance", "bybit"
|
|
"""
|
|
api_key = api_config.get("api_key")
|
|
secret = api_config.get("api_secret")
|
|
|
|
exchange_class = getattr(ccxt, exchange_id, None)
|
|
if exchange_class is None:
|
|
raise ValueError(f"不支持的交易所ID: {exchange_id},请检查配置文件中的 'exchange' 字段")
|
|
|
|
exchange_params = {
|
|
"apiKey": api_key,
|
|
"secret": secret,
|
|
"enableRatelimit": True,
|
|
}
|
|
if "password" in api_config:
|
|
exchange_params["password"] = api_config["password"]
|
|
|
|
return exchange_class(exchange_params)
|
|
|
|
|
|
def git_commit(repo_path: str = ".") -> Optional[str]:
|
|
try:
|
|
repo = git.Repo(repo_path)
|
|
return repo.head.commit.hexsha
|
|
except Exception:
|
|
return None
|
|
|
|
|
|
def main():
|
|
logger = logging.getLogger(f"{__name__}.main")
|
|
logger.info("=" * 40)
|
|
|
|
app_commit = git_commit(".")
|
|
app_commit_short = app_commit[:10] if app_commit else "unknown"
|
|
|
|
if not os.path.exists("config"):
|
|
logger.error("配置目录 config 不存在")
|
|
return
|
|
|
|
config_commit = git_commit("config")
|
|
config_commit_short = config_commit[:10] if config_commit else "unknown"
|
|
output_commit = git_commit("output")
|
|
output_commit_short = output_commit[:10] if output_commit else "unknown"
|
|
logger.info("主程序 %s, 配置 %s, 输出 %s", app_commit_short, config_commit_short, output_commit_short)
|
|
|
|
config_files = list(Path("config").glob("*.json"))
|
|
if not config_files:
|
|
logger.info("配置目录中没有找到任何JSON文件")
|
|
return
|
|
|
|
logger.info("找到 %d 个配置文件需要处理", len(config_files))
|
|
|
|
for config_file in config_files:
|
|
try:
|
|
logger.info("处理配置文件: %s", config_file)
|
|
config = TradingConfig(str(config_file))
|
|
|
|
exchange_id = config.config_data.get("exchange")
|
|
logger.info("使用交易所: %s", exchange_id)
|
|
|
|
api_conf = config.config_data.get("api", {})
|
|
exchange = build_ccxt_exchange(api_conf, exchange_id)
|
|
|
|
spot_trader = BotSpotTrade(
|
|
exchange=exchange,
|
|
symbol_mapping=config.config_data.get("symbol_mapping", {}),
|
|
config_file_name=os.path.basename(config_file).replace(".json", ""),
|
|
)
|
|
|
|
today_trades = config.get_today_trades()
|
|
if not today_trades:
|
|
logger.info("%s - 今天没有需要执行的交易", config_file)
|
|
continue
|
|
|
|
logger.info("%s - 今天有 %d 个交易需要执行", config_file, len(today_trades))
|
|
|
|
for trade_config in today_trades:
|
|
try:
|
|
symbol = trade_config.get("symbol")
|
|
order_type = trade_config.get("order_type")
|
|
side = trade_config.get("side")
|
|
params = trade_config.get("params", {})
|
|
|
|
if not all([symbol, order_type, side]):
|
|
logger.error("%s - 交易配置缺少必要参数: %s", config_file, trade_config)
|
|
continue
|
|
|
|
logger.info("%s - 执行交易: %s %s %s", config_file, symbol, order_type, side)
|
|
result = spot_trader.trade(
|
|
symbol=symbol,
|
|
order_type=order_type,
|
|
side=side,
|
|
**params,
|
|
)
|
|
if result:
|
|
logger.info("%s - 交易执行成功: %s", config_file, result)
|
|
else:
|
|
logger.error("%s - 交易执行失败", config_file)
|
|
|
|
except Exception as e:
|
|
logger.error("%s - 执行交易时出错: %s", config_file, str(e))
|
|
continue
|
|
|
|
except Exception as e:
|
|
logger.error("处理配置文件 %s 时出错: %s", config_file, str(e))
|
|
continue
|
|
|
|
logger.info("所有配置文件处理完毕")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|