Calculation method of paging

1. Calculation method of paging ：

pageSize   representative ： How many records are displayed per page

pageNow   representative ： The current page （ Which page is it now ）

pageCount   representative ： How many pages are there

pageRow     representative ： How many records are there in the database

commonly pageRow You can query it directly from the database ：select count(*) from users;

The calculation formula is as follows ：

pageCount = ((pageRow-1)/pageSize) + 1

commonly pageSize   It is set by the user