From the Tutorial and other documentation sources, you learned how to create business classes for your XAF applications. If you have business classes in your application, you have database tables in the application's database. However, the reality is…
用NumPy genfromtxt导入数据 NumPy provides several functions to create arrays from tabular data. We focus here on the genfromtxt function. In a nutshell, genfromtxt runs two main loops. The first loop converts each line of the file in a sequence of strings…