Question

我有一个像这样的多维数组，这是一组纬度和经度。

multi = [[12.96145, 77.58408],[12.96219, 77.58447],[12.96302, 77.58489],[12.96316, 77.58496],[12.96348, 77.58511],[12.96356, 77.58512],[12.96363, 77.5851],[12.96372, 77.58506],[12.96376, 77.58497],[12.96374, 77.58479]]

我想将上面的数组转换为单个变量，如下所示：

lat1 = 12.96145
lon1 = 77.58408
lat2 = 12.96219
lon2 = 77.58447
.
.

我试图通过如下的漫长程序来实现上述目标。我希望肯定会有更好的方法来做到这一点。

l1,l2,l3,l4,l5,l6,l7,l8,l9,l10 = multi

lat1 = l1.first
lon1 = l1.last
lat2 = l2.first
lon2 = l2.last
.
.

Answer 1

lat1, lon1,
lat2, lon2,
...
latn, lonn,
= multi.flatten

或

(lat1, lon1),
(lat2, lon2),
...
(latn, lonn),
= multi

Answer 2

也可以为这样的实例变量赋值：

  multi.each_with_index do |pair, i|
    instance_variable_set("@lat#{i%multi.size+1}", pair.first)
    instance_variable_set("@lon#{i%multi.size+1}", pair.last)
  end

然后引用变量：@lat1，@lon1，...，@latn，@lonn

多维数组到单个变量

2 个答案: