小编k3b*_*k3b的帖子

这是我的示例数据：

import pandas as pd
import re
  
cars = pd.DataFrame({'Engine Information': {0: 'Honda 2.4L 4 cylinder 190 hp 162 ft-lbs',
          1: 'Aston Martin 4.7L 8 cylinder 420 hp 346 ft-lbs',
          2: 'Dodge 5.7L 8 Cylinder 390hp 407 ft-lbs',
          3: 'MINI 1.6L 4 Cylinder 118 hp 114 ft-lbs',
          4: 'Ford 5.0L 8 Cylinder 360hp 380 ft-lbs FFV',
          5: 'GMC 6.0L 8 Cylinder 352 hp 382 ft-lbs'},
         'HP': {0: None, 1: None, 2: None, 3: None, 4: None, 5: None}}) …