Pandas is a powerful Python library that can be used to manipulate and analyze data. Pandas has many methods to view and manipulate data, one example of which is the dataframe.sort_index() function.
Pandas 是一个功能强大的 Python 库，可用于操作和分析数据。 Pandas 有许多方法来查看和操作数据，其中一个例子是 dataframe.sort_index() 函数。