pandas读取csv将数据转为list方便调用

import pandas as pd
import numpy as np

corpus = pd.read_csv('corpus.csv') # 得到 DataFrame
corpus = np.array(corpus)  # 转换为 ndarray [[1], [2], [3]]
corpus = corpus.reshape(1, len(corpus)).tolist()  # 转换成 List [[1, 2, 3]]
corpus