sql语句in超过1000时的写法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication3
{
class Program
{
static void Main(string[] args)
{
int totalCount = ;
int perCount = ;
List<int> ids = new List<int>();
for (int i = ; i < totalCount; i++)
{
ids.Add(i+);
}
int cx = ;
bool first = true;
StringBuilder tempsb = new StringBuilder();
StringBuilder sb = new StringBuilder();
for (int i = ; i < totalCount; i++)
{

tempsb.Append(ids[i]+",");
cx++;
if (cx == perCount)
{

if (first == true)
{
sb.Append(" and id in (" + tempsb.ToString().TrimEnd(',') + ")");
first = false;
}
else
{
sb.Append(" or id in (" + tempsb.ToString().TrimEnd(',') + ")");
}
cx = ;

tempsb.Clear();
}

}
if (tempsb.ToString() != "")
{
if (first == true)
{
sb.Append(" and id in (" + tempsb.ToString().TrimEnd(',') + ")");
first = false;
}
else
{
sb.Append(" or id in (" + tempsb.ToString().TrimEnd(',') + ")");
}
}
string sql = string.Format("select *from tb where 1=1 {0}",sb.ToString());
}
}
}