count.cs

来自「一个简单的网上书店」· CS 代码 · 共 30 行

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;

namespace DAL
{
   public class Count
    {
       public static int getCount(string sqlStr)
       {
           try
           {
               using (SqlDataReader read = DBHelp.Sel(sqlStr))
               {
                   int count = 0;
                   if(read.Read())
                       count = (read[0]!=null) ? int.Parse(read[0].ToString()) : 0;
                   return count;
               }
           }
           catch (Exception ex)
           {
               throw ex;
           }
       }
    }
}