OTC/USDT交易所项目系统开发技术（成熟源码）
OTC（Over-The-Counter）交易模式是一种非交易所交易模式，開发+++++头像、通常用于交易金融产品，如股票、债券、货币、衍生品等。OTC交易通常通过经纪商、交易商或做市商进行，而非通过交易所。以下是一个简单的Python代码示例，用于实现OTC交易模式：
```python
import json
class OTCMarket:
def __init__(self):
self.orders = {}
def place_order(self, order_type, instrument, price, quantity):
if order_type not in ["buy", "sell"]:
raise ValueError("Invalid order type. It must be either 'buy' or 'sell'.")
if instrument not in self.orders:
self.orders[instrument] = []
order = {
"type": order_type,
"price": price,
"quantity": quantity
}
self.orders[instrument].append(order)
def execute_order(self, instrument):
if instrument not in self.orders:
raise ValueError(f"No orders found for instrument '{instrument}'.")
orders = self.orders[instrument]
if len(orders) == 0:
raise ValueError(f"No orders found for instrument '{instrument}'.")
executed_order = orders.pop(0)
return executed_order
def main():
otc_market = OTCMarket()
# Place buy and sell orders
otc_market.place_order("buy", "ABC", 100, 50)
otc_market.place_order("sell", "ABC", 110, 30)
# Execute orders
executed_buy_order = otc_market.execute_order("ABC")
executed_sell_order = otc_market.execute_order("ABC")
# Print executed orders
print("Executed buy order: ", json.dumps(executed_buy_order, indent=4))
print("Executed sell order: ", json.dumps(executed_sell_order, indent
