读取pandas修改单列数据类型

import pandas as pd
import numpy as np

df = pd.read_csv('000917.csv',encoding='gbk')
df = df[df['涨跌幅']!='None']
df['涨跌幅'] = df['涨跌幅'].astype(np.float64)

print(df[df['涨跌幅']>5])