假设我有以下句子:
bean likes to sell his beans
我想用其他单词替换所有出现的特定单词.例如,bean要robert和beans到cars.
我不能只使用str.replace因为在这种情况下它会改变beans为roberts.
>>> "bean likes to sell his beans".replace("bean","robert")
'robert likes to sell his roberts'
我只需改变整个单词,而不是另一个单词中出现的单词.我认为我可以通过使用正则表达式实现这一点,但不知道如何正确执行.