pagecount=1; //分页之后的总页数
public void setrowcount(int n){
rowcount=n;
}
public int getrowcount(){
return rowcount;
}
public void setpagecount(int r,int p){
rowcount=r;
pagesize=p;
pagecount=(rowcount%pagesize)==0?(rowcount/pagesize):(rowcount/pagesize+1);
//计算分页之后的总页数
