public void OnGet()
{
int pageIndex;
//未输入页码时默认显示第一页
if (Request.Query["page"].Count == 0)
{
pageIndex = 1;
}
else
{
pageIndex = Convert.ToInt32(Request.Query["page"][0]);
}
ProblemRepository repository = new ProblemRepository();
problems = repository.Get(pageIndex, pageSize);
pageAmount = (repository.CountOfProblem() / pageSize) + 1;
}