这个泛型 List<T>的准确的写法是什么呢

这个泛型 List<T>的正确的写法是什么呢？

C# code

for (int r = 3; r < dataGrid.Rows.Count; r++){    for (int c = 2; c <= 4; c++)    {         var ssq = new List<int>(3) {Convert.ToInt32(listGrid[r - 2,c])};         var sq = new List<int>(3) {Convert.ToInt32(listGrid[r - 1, c])};         var bq = new List<int>(3) {Convert.ToInt32(listGrid[r, c])};    }}

C# code

                for (int r = 4; r < dataGrid.Rows.Count; r++)                {                    List<int> ssq = new List<int>(3);                    ssq.Add(Convert.ToInt32(listGrid[r - 2, 2]));                    ssq.Add(Convert.ToInt32(listGrid[r - 2, 3]));                    ssq.Add(Convert.ToInt32(listGrid[r - 2, 4]));                    foreach (int val in ssq)                    {                        listGrid[r, 16] = val;                    }                }
[解决办法]
for (int c = 2; c <= 4; c++)
{
 List<int> ssq = new List<int>();
 ssq.Add(Convert.ToInt32(listGrid[2, c]));
 if (ssq.Contains(3))
 {
   listGrid[2, 16] = "yes"; // 坐标写死，循环就看最后个值了
 }
 else
 {
   listGrid[2, 16] = "no";
 }
}