Answer 1

Answer 2

Answer 3

Answer 4

Answer 5

Answer 6

使用chunksize获取数据块，然后将数据块随机写入不同的文件。

df_reader = pd.read_csv("large_file.csv", chunksize=10)

mychunk=next(df_reader)

or

for chunk in pd.read_csv('large_file.csv', chunksize=10):

   #random choice a file to write to