or和and的区别是什么?

or常用于否定，and常用于肯定

and和or都是和的意思，但and通常用在肯定陈述句中，而or用在否定句和疑问句中。
例如：
and She is my sister and he is my brother.
or Are she is your sister or he is your brother？

1、or可表"或者"
2、在否定句中多用or

外围

1.并列结构中,or通常用于否定句,and用于肯定句.但有时and 也可用于否定句.请注意其不同特点：
There is no air or water in the moon.
There is no air and no water on the moon.
在否定中并列结构用or 连接,但含有两个否定词的句子实际被看作是肯定结构,因此要用and.
2.or用于连接并列的单词、词组、短语或句子,表示"或者"的意思.如:
We can visit the World Park or travel around the world.
我们可以参观世界公园,或者周游全世界.
3.or用在选择疑问句中,灵活译为"还是".如:
Is that an apple or an orange?那是苹果还是桔子?
4.or用于否定句中,代替and ,表示"和"的意思.如:
I don't like bread ,rice or porridge.我不喜欢面包、米饭和粥.
5.or用于连接两个并列的句子,表示"否则,要不然"的意思.如:
Hurry up,or you'll be late.快点,否则你要迟到啦.
祝你学习愉快!

or和and都是并列连词。
I don't like English or Chinese.(or用于否定句，表并列)
Which do you like, English or Chinese? (or用于疑问句，表并列)
I like English and Chinese.(and用于肯定句，表并列)