解题思路
本题主要考查二维数组的遍历，我们首先将二维数据降为一维，在进行行列的遍历赋值。
代码
class Solution(object):
def matrixReshape(self, nums, r, c):
"""
:type nums: List[List[int]]
:type r: int
:type c: int
:rtype: List[List[int]]
"""
mask = [[0]*c for i in range(r)]
M = len(nums[0])
N = len(nums)
if M*N != r*c:
return nums
else:
list1 = []
for i in nums:
list1 += i
for i in range(r):
for j in range(c):
mask[i][j] = list1[i*c + j]
return mask
```@[TOC](目录)
