python重新索引将所有数据转换为NaN

Question

import pandas as pd

import numpy as np

data = np.random.randint(10,100,15).reshape(5,3)


df = pd.DataFrame(data,index = ["a","c","e","f","h"],columns = ["column1","column2","column3"])

df = df.reindex([["a","b","c","d","e","f","g","h"]])

result = df

result = df.drop("column1",axis = 1)

print(result)

Answer 1

好的，伙计们。我解决了这个问题。错误是方括号。在df.reindex部分，我用了两个方括号。但我应该用一个。非常感谢你们的帮助