（工作笔记）数据分批次操作，封装方法（sql添删改查）

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//
// idList为数据总的和，count代表按照多少一组
//
public static IList<IList<int>> GetlistGroup(IList<int> idList,int count)
{
IList<int> templist = null;
IList<IList<int>> relist = new List<IList<int>>();
for (int i = 0; i < (idList.Count % count == 0 ? idList.Count / count : idList.Count / count + 1); i++)
{
templist = new List<int>();
for (int j = 0; j < count; j++)
{
int index = i * count + j;
if (index == idList.Count) { break; }
templist.Add(idList[index]);
}
relist.Add(templist);
}
return relist;

}

//调用
IList<IList<int>> relist = GetlistGroup(list,100);

string ids = string.Empty;
for (int i = 0; i < relist.Count; i++)
{
 ids =string.Join(",", relist[i].ToArray());
         string strSQL = string.Format("update {0} set synstatus = 1 where {1} in ({2})", tableName, idName, ids);

}

          

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