仅删除字符串中最后一次出现的单词

def delete_last_occurrence_of_word(sentence, target_word):
    words = sentence.split()
    for i in range(len(words)-1, -1, -1):
        if words[i] == target_word:
            del words[i]
            break
    return ' '.join(words)

# 示例用法
sentence = "This is a sample sentence. This is the last occurrence of the word sample."
target_word = "sample"
result = delete_last_occurrence_of_word(sentence, target_word)
print(result)