从填充了句子的数据框中删除字母分组和单词的列表

import pandas as pd
import re

# 创建示例数据框
data = {'句子': ['This is a sample sentence.', 'Another example with words.']}
df = pd.DataFrame(data)

# 遍历每个句子
for i in range(len(df)):
    sentence = df.loc[i, '句子']
    
    # 删除字母分组
    sentence = re.sub(r'[a-zA-Z]+', '', sentence)
    
    # 删除指定的单词列表
    words_to_remove = ['is', 'a', 'with']
    words = sentence.split()
    words = [word for word in words if word not in words_to_remove]
    
    # 更新句子列
    df.loc[i, '句子'] = ' '.join(words)

# 打印修改后的数据框
print(df)

         句子
0            
1  Another