简单尝试使用一些分类模型对次日股票涨跌方向进行预测，评估数据特征和不同模型效果 A simple attempt to use some classification models to predict the next day's stock price movement direction, and evaluate the data features and the performance of different models.

简单入门股票数据分析，包括基本的股票量化数据获取，简单的指标计算操作，以及相应的绘图 Simple Introduction to Stock Data Analysis: Including Basic Quantitative Data Acquisition, Simple Indicator Calculations, and Corresponding Plotting