题解 | #牛客网C系用户们的信息#

import pandas as pd 
df = pd.read_csv('Nowcoder.csv',sep=',')
pd.set_option("display.max_columns",None)
pd.set_option("display.max_rows",None)
pd.set_option("display.width",500)
# 狗市题目，用宽度限制数字长度，纯犯病
print(df.loc[df['Language'].apply(lambda x:x in ['CPP','C','C#'])])