Some simple usage of pandas to read files, updated from time to time

import pandas as pd

src = 'train.csv'
# index_col=0, 以第一列作为索引
df = pd.read_csv(src, index_col=0)[:100]
# print(df)
#	读取某一行
print(df.iloc[25])

# 删除某列为nan的行
df1 = df.dropna(subset=["next"])