Steps to Run:
1. This example uses Anaconda to manage Python packages. The Anaconda version is conda 4.5.11.
2. Use Anaconda to create a virtual environment with Python version 3.8.
3. Activate the virtual environment you created, and install dolphindb with pip install dolphindb.
4. Modify the database connection configuration in common/DBUtil.py.
5. Run startArbitrage.py to place the parent order into the subscribed stream table.