二维的数组,比如:
x = [[0] * 5] * 2x[0][4] = 2
print(x)
输出了两个数组:
输出结果:
[[0, 0, 0, 0, 2], [0, 0, 0, 0, 2]]
>>> info='[{"username":"qian","age":"18","weight":"55"}]'>>> eval(info)[0].get('age')
'18'
>>>
二维的数组,比如:
x = [[0] * 5] * 2x[0][4] = 2
print(x)
输出了两个数组:
输出结果:
[[0, 0, 0, 0, 2], [0, 0, 0, 0, 2]]
>>> info='[{"username":"qian","age":"18","weight":"55"}]'>>> eval(info)[0].get('age')
'18'
>>>