如何在以下场景中访问2D数组的元素？

Question

If I have a 2d array

mylist=[[0],[0],[1],[0]]
for idx in range(len(mylist)):
    element=mylist[idx]

element=list([0]) for the first element and second element, element=list([1]) for the third element and so on in the same pattern

For example, how do I make element=0 instead of element=list([0]) in the first instance

Answer 1

It is not very clear from your question what you are trying to achieve so I am going to outline several scenarios for you.

1. As mentioned by @AkshayNevrekar it might be worth going through how to access elements in a 2D array? ;

mylist=[[0],[0],[1],[0]] 
  for i in range(len(mylist)):   
    for j in range(len(mylist[i])):
      print(mylist[i][j])

2. Did you choose the right data structure for your problem? It might be worth keeping the items in 1D list.

    mylist=[0, 0, 1, 0] 

Or alternatively list of tuples, access would be the same as option 1:

mylist = [(0, 0, 1, 0), (1, 1, 1, 1)]