批量重命名文件夹中的文件为序列号名称，有一下选项，如 -d -w，可以通过-h查看帮助，为初学python所写-Batch rename files in that folder name for the serial number, you have options such as-d-w, by-h Show help book for python beginner

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线性回归是利用数理统计中回归分析，来确定两种或两种以上变量间相互依赖的定量关系的一种统计分析方法，运用十分广泛。其表达形式为y = w'x+e，e为误差服从均值为0的正态分布。(Linear regression is a statistical analysis method to determine the quantitative relationship between two or more variables and more than two variables by regres