计算分页页数或索引在第几页

int totalCount = 100;
int totalPageNo = 0;
int pageSize = 10;

//计算共多少页
totalPageNo = totalCount % pageSize == 0 ? totalCount / pageSize : totalCount / pageSize + 1;

//判断索引10在第几页
int suoyin = 10;
int currPage = suoyin % pageSize == 0 ? suoyin / pageSize : suoyin / pageSize + 1;   //第几页