需要代码来替换以KB字符结尾的文本文件中的所有单词

import re

def replace_words_ending_with_kb(file_path, replacement_word):
    # 读取文件内容
    with open(file_path, 'r', encoding='utf-8') as file:
        content = file.read()

    # 使用正则表达式匹配以KB结尾的单词
    pattern = r'\b\w*KB\b'
    new_content = re.sub(pattern, replacement_word, content)

    # 将修改后的内容写回文件
    with open(file_path, 'w', encoding='utf-8') as file:
        file.write(new_content)

# 使用示例
file_path = 'example.txt'  # 替换为你的文件路径
replacement_word = 'NEWWORD'  # 替换为你想要替换成的单词
replace_words_ending_with_kb(file_path, replacement_word)