如何在同一行上有多个替换

import re

def multiple_replace(patterns, text):
    for pattern, replacement in patterns:
        text = re.sub(pattern, replacement, text)
    return text

# 定义替换规则
patterns = [
    (r'apple', 'orange'),  # 将 "apple" 替换为 "orange"
    (r'banana', 'grape'),  # 将 "banana" 替换为 "grape"
    (r'cherry', 'melon')   # 将 "cherry" 替换为 "melon"
]

# 待替换的文本
text = 'I have an apple, a banana, and a cherry.'

# 执行替换操作
result = multiple_replace(patterns, text)

print(result)