选股器升级公告：新增两种选股结果处理方式

Core Viewpoint - The article discusses the features and updates of a stock selection tool that utilizes various technical indicators and market data to filter stocks in the Shanghai and Shenzhen markets, enhancing the flexibility of trading strategies. Group 1: Stock Selection Tool Features - The stock selection tool operates on multiple time frames, including 5, 15, 30, and 60 minutes, as well as daily lines, using thousands of technical indicators and fundamental data to filter stocks [1]. - The tool supports stocks from various sources, including the Shanghai Stock Exchange, Shenzhen Stock Exchange, and specific indices like the Shanghai 50 and CSI 300 [1]. - The selection process runs at fixed times daily and can also monitor stocks in real-time, allowing for both low-frequency and high-frequency selections [1]. Group 2: New Processing Methods - Two new processing methods have been introduced: "Intersection Removal" and "Difference Removal," which enhance the flexibility of strategy design, particularly for rotation strategies [4][10]. - "Intersection Removal" allows for the exclusion of stocks from a comparison pool if they exist in the selection results, useful for removing selected stocks from an existing pool [5]. - "Difference Removal" enables the exclusion of stocks from a comparison pool if they do not appear in the selection results, facilitating automatic selling of stocks that fall out of a specified ranking [8][10]. Group 3: Application Scenarios - The stock selection tool can be applied in scenarios such as board strategies, where it filters out stocks with capital outflows [7]. - In rotation trading strategies, the tool can be used post-market close to filter and sell stocks that do not meet the top N ranking criteria [10].