1334250330_8408.jpg
    参考:https://blog.csdn.net/yhmhappy2006/article/details/2934435

    1. function main()
    2.     local t = {}  --可视化螺旋阵列
    3.     local t1={}  --转换成螺旋坐标
    4.     local y1=0
    5.     for y = -5,5  do
    6.         y1=y1+1
    7.         t[y1]={}
    8.         local x1=0
    9.         for x = -5,5 do
    10.             x1=x1+1
    11.             t[y1][x1]=spiral(x, y)
    12.             t1[spiral(x, y)]={x1,y1}
    13.         end
    14.     end
    15.     print(t)  --必须使用支持打印表的函数
    16.     print(t1)
    17. end
    19. function spiral(x,y)
    20.     local c = max(math.abs(x), math.abs(y))  --当前坐标所在圈
    21.     local max1 = (c * 2 + 1) * (c * 2 + 1)  --当前圈上最大值
    23.     if y == -c then  --上边
    24.         return max1 + (x + y)
    25.     elseif (x == -c) then --左边
    26.         return max1 + (3 * x - y)
    27.     elseif (y == c) then --下
    28.         return max1 + (-x - 5 * y)
    29.     else --右边
    30.         return max1 + (-7 * x + y)
    31.     end
    32. end
    34. function max(n1,n2)
    35.     if  n1 > n2 then
    36.         return n1
    37.     else
    38.         return n2
    39.     end
    40. end
    42. main()
    45. --[[{
    46. {111,112,113,114,115,116,117,118,119,120,121,},
    47. {110, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,},
    48. {109, 72, 43, 44, 45, 46, 47, 48, 49, 50, 83,},
    49. {108, 71, 42, 21, 22, 23, 24, 25, 26, 51, 84,},
    50. {107, 70, 41, 20,  7,  8,  9, 10, 27, 52, 85,},
    51. {106, 69, 40, 19,  6,  1,  2, 11, 28, 53, 86,},
    52. {105, 68, 39, 18,  5,  4,  3, 12, 29, 54, 87,},
    53. {104, 67, 38, 17, 16, 15, 14, 13, 30, 55, 88,},
    54. {103, 66, 37, 36, 35, 34, 33, 32, 31, 56, 89,},
    55. {102, 65, 64, 63, 62, 61, 60, 59, 58, 57, 90,},
    56. {101,100, 99, 98, 97, 96, 95, 94, 93, 92, 91,},}]]