如何在不转换日期时间列的情况下将对象列转换为整型和浮点型列

import pandas as pd

data = {'对象列': ['1', '2', '3.5', '4.2', '5']}
df = pd.DataFrame(data)

print(df.dtypes)

对象列    object
dtype: object

df['对象列'] = df['对象列'].astype(int)

print(df.dtypes)

对象列    int64
dtype: object

df['对象列'] = df['对象列'].astype(float)

print(df.dtypes)

对象列    float64
dtype: object