Pandas 面试题与答案

问题 1. What is Pandas?

Pandas is an open-source data manipulation and analysis library for Python.

问题 2. How to import Pandas?

You can import Pandas using the statement: import pandas as pd

问题 3. What is a DataFrame?

A DataFrame is a two-dimensional, tabular data structure in Pandas.

问题 4. How to create a DataFrame in Pandas?

You can create a DataFrame using the pd.DataFrame() constructor.

Example:

df = pd.DataFrame({'Column1': [1, 2, 3], 'Column2': ['A', 'B', 'C']})

问题 5. What is the difference between loc and iloc in Pandas?

loc is label-based indexing, while iloc is integer-based indexing.