摘要： We would have a list of documents sorted by userand then subsorted by date, so it would look something like the following:User 123 on March 13, 2010User 123 on March 12, 2010User 123 on March 11, 2010User 123 on March 5, 2010User 123 on March 4, 2010User 124 on March 12, 2010User 124 on March 11, 20 阅读全文