求分页索引解释
public pageIndex{
public static pageIndex (Long pageCount,int currenpage,int countpage ){
int startpage = currenpage-(pagecount%2==0 ? pagecount/2-1 : pagecount/2);
int endpage = currenpage + pagecount/2;
if(startpage<1){
startpage=1;
if(countpage>=pagecount) endpage=pagecount;
else endpage =countpage;
}
if(endpage>countpage){
endpage=countpage;
if(endpage-pagecount>0) statrtpage=endpage-pagecount+1;
else startpage =1;
}
}
}