量化交易知识与技能。包括多因子选股、技术指标、经典策略（双均线、网格交易、突破策略）、套利策略、回测框架（Backtrader）、风险指标等。用于回答量化交易相关问题、股票分析、策略建议等。
Initial release of quant-trading skill. - Provides core quantitative trading knowledge for stock analysis, strategy recommendations, and learning guidance. - Covers multi-factor stock selection, technical indicators, classic strategies (double moving average, grid trading, breakout strategies, momentum), and arbitrage. - Includes risk control methods like position management, stop-loss, and profit-taking. - Offers a template for buy/sell analysis and suggestions. - Reference to popular data sources and structured learning route.