擅长:python、mysql、java
<p>为什么不放在while循环中得到任意数量的矩阵,为什么不一次接受所有4个元素?在</p>
<p>比如:</p>
<pre><code>user_in = ['0']
matrices = []
while (user_in[0].lower() != 'q'):
user_in = input("Input 2x2 matrix(space separated), enter 'q' to quit: ").split(' ')
if len(user_in) == 4:
a, b, c, d = user_in
m2x2 = [[int(a), int(b)], [int(c), int(d)]]
matrices.append(m2x2)
for matrix in matrices:
print(matrix)
</code></pre>