在相同位置替换值

Question

a=[2,3,1,5,6,7] 
b=[0,0,2,4,6,0] 

谁能告诉我如何删除数组a中的[1,5,6]并替换为b值[2,4,6]？

Answer 1

您可以使用list slicing：

逻辑：将所有非零值从b替换为a。

In [2082]: a=[2,3,1,5,6,7]

In [2083]: b=[0,0,2,4,6,0]

In [2104]: for c,i in enumerate(b):
      ...:     if i != 0:
      ...:         a[c] = i
      ...:         

In [2105]: a
Out[2105]: [2, 3, 2, 4, 6, 7]

Answer 2

您可以像这样使用切片：

a = [2,3,1,5,6,7]
b = [0,0,2,4,6,0]
a[2:5] = b[2:5]
print(a)

>>> [2, 3, 2, 4, 6, 7]