- which 可引導限制性定語從句,也可以引導非限制性定語從句
限制性和非限制區分——沒有逗號隔開的,是限制性;有逗號的是非限制性
The file which I saw yesterday was wonderful.(which 前沒有逗號,是限制性定語從句)
Internet is so interesting, which makes all possible happen.(which 前有逗號,是非限制性定語從句)
限制性和非限制區分——沒有逗號隔開的,是限制性;有逗號的是非限制性
The file which I saw yesterday was wonderful.(which 前沒有逗號,是限制性定語從句)
Internet is so interesting, which makes all possible happen.(which 前有逗號,是非限制性定語從句)
https://stackoverflow.com/questions/419163/what-does-if-name-main-do