import numpy as np
df = df.replace(np.inf, np.nan) #替换正inf为NaN
df.replace(np.inf, np.nan, inpalce=True) #替换正inf为NaN
import numpy as np
df = df.replace(np.inf, np.nan) #替换正inf为NaN
df.replace(np.inf, np.nan, inpalce=True) #替换正inf为NaN