For instance, you don't need to add cases where the found href is null - something that shouldn't happen with a well-formed document but sometimes does.

比如，在发现的href为空的地方不需要添加链接—格式良好的文档不应该出现这种情况，但是有时候确实会出现。

youdao

For instance, you don't need to add cases where the found href is null - something that shouldn't happen with a well-formed document but sometimes does.

比如，在发现的href为空的地方不需要添加链接—格式良好的文档不应该出现这种情况，但是有时候确实会出现。

youdao