动态矩阵输入在Python

Question

raw = input("Enret Number of Raws : ") 
cols = input("Enter Number of Cols : ") 

obj = [] 
mat = [[[] for j in range(raw)] for i in range(cols)] 
for k in range(2): 
    for i in range(cols): 
     for j in range(raw): 
      number = int(input("Please Enter Elements of Matrix : ")) 
      mat[i][j] = number 
    obj.append(mat) 
    print obj 

输出：

 
Enret Number of Raws : 2 
Enter Number of Cols : 2 
Please Enter Elements of Matrix 1:9 
Please Enter Elements of Matrix 1:3 
Please Enter Elements of Matrix 1:7 
Please Enter Elements of Matrix 1:1 
[[[9, 3], [7, 1]]] 
Please Enter Elements of Matrix 2:8 
Please Enter Elements of Matrix 2:2 
Please Enter Elements of Matrix 2:4 
Please Enter Elements of Matrix 2:6 
[[[8, 2], [4, 6]], [[8, 2], [4, 6]]] 

在列表追加第二矩阵后，第一次拿到找零的价值。

Answer 1

原始=输入（ “原糖的Enret数量： ”） COLS =输入（“ 列数的输入号码：”）

OBJ = []

对于k在范围（2）：

垫= [[[]用于范围Ĵ（原始）用于i的范围（COLS）]

for i in range(cols): 
    for j in range(raw): 
     number = int(input("Please Enter Elements of Matrix : ")) 
     mat[i][j] = number 
obj.append(mat) 
print obj