/// <summary>
/// 根据ID删除帖子
/// </summary>
static void DeletePost()
{
Console.WriteLine("请输入将要删除的帖子ID");
//获取输入并检测输入的帖子ID是否为正整数
string idStr = PositiveWholeNumberDetection();
int id = int.Parse(idStr);
//检测帖子ID是否存在
id = PostIdDetection(idStr, id);
PostBusinessLayer pbl = new BusinessLayer.PostBusinessLayer();
Post post = pbl.QueryPost(id);
pbl.Delete(post);
}
/// <summary>
/// 检测帖子ID是否存在
/// </summary>
/// <param name="idStr"></param>
/// <param name="id"></param>
/// <returns></returns>
static int PostIdDetection(string idStr, int id)
{
PostBusinessLayer pbl = new BusinessLayer.PostBusinessLayer();
bool idDetection = true;
while (idDetection)
{
if (pbl.QueryPost(id) == null)
{
Console.WriteLine("没有该帖子ID,请重新输入!");
idStr = PositiveWholeNumberDetection();
id = int.Parse(idStr);
}
else
{
idDetection = false;
}
}
return(id);
}