[python] pandas study notes (6) data sorting

import pandas as pd

fpath = './ant-learn-pandas-master/datas/beijing_tianqi/beijing_tianqi_2018.csv'
rating = pd.read_csv(fpath)
print(rating)

#by可以指定列表达到多值排序的目的
rating.sort_values(by=['aqiLevel','tianqi'], ascending=True, inplace=True)
print("-------------------------------")
print(rating)