导入数据
import pandas as pd
df = pd.DataFrame([['liver','E',89,21],
['Arry','C',36,37],
['Ack','A',57,60],
['Eorge','C',93,96],
['Oah','D',65,49]
],
columns = ['name','team','Q1','Q2'])df
将df表中的name字段中的值全大写
df['name'] = df['name'].str.upper()处理过后的df
将df表中的name字段中的值全小写
df['name'] = df['name'].str.lower()处理过后的df
