如何动态获取字典？

Question

I have a for i in range(1,80): with the size 80 and there is a dictionary index = {} in my for loop. I want for each time that my for loop circle, adds a key-value equal to i and type value equal to a list.

I also tried this code:

import numpy as np

 index  = {}
 for i in range(1, 80):
      tmp = L * msk
      (r, c) = np.nonzero(tmp > 0)
      v = np.size(c)  # v equal 24
      I = np.arange(v) # I = [0,1,2,3,...,23]
      Ind = np.empty((v, 2))
      Ind[i , :] = (r[I[i]], c[I[I]])
      index = {key = I: type = Ind} 

Answer 1

In the last line, you're changing the entire index reference to a new dictionary. You need to add a new key to index , not change it entirely. Try changing that line to:

index[i] = Ind