UYOU
我会用 Array.Clear()int[][] jagged = new int[][] { new int[] { 1, 2, 3, 4 }, new int[] { 11, 12 }, new int[] { 21, 22, 23 }};for (int i = 0; i < jagged.Length; i++){ Array.Clear(jagged[i], 0, jagged[i].Length);}代替for (int i = 0; i < jagged.Length; i++){ for (int j = 0; j < jagged[i].Length; j++) { jagged[i][j] = 0; }}