如何在两个列表中找到匹配的单词，然后将匹配的单词插入到dataframe的列中？

import pandas as pd

df = pd.DataFrame()
df['matched_words'] = ''

for word1 in list1:
    for word2 in list2:
        if word1 == word2:
            # 找到匹配的单词，将其插入到dataframe的列中
            df.loc[df.index.max() + 1, 'matched_words'] = word1

print(df)

import pandas as pd

# 创建两个列表
list1 = ['apple', 'banana', 'orange']
list2 = ['banana', 'grape', 'apple']

# 创建空的dataframe
df = pd.DataFrame()
df['matched_words'] = ''

# 遍历list1中的每个单词，并在list2中查找匹配的单词
for word1 in list1:
    for word2 in list2:
        if word1 == word2:
            # 找到匹配的单词，将其插入到dataframe的列中
            df.loc[df.index.max() + 1, 'matched_words'] = word1

# 打印dataframe的内容
print(df)