QuantConnect/LeanC#Lean Algorithmic Trading Engine by QuantConnect (Python, C#)最近提交 2026年5月14日18,979 stars (18,979 stars)4,772 forks (4,772 forks)6 个已索引 issue (6 个已索引 issue)6 个开放 good first issue (6 个开放 good first issue)