python列表乘以每个值

Question

我想知道如何将两个不同列表中的每个元素相乘。

例如：

list_a = [1,2,3,4,5] list_b = [10,20,30,40,50]

我想要1X10 2X20 3X30 4X40 5X50

以便结果为10, 40, 90, 160, 250

如果你能帮助我，我将非常感激。

Answer 1

您可以使用zip功能，如下所示。

>>> list_a = [1,2,3,4,5]
>>> list_b = [10,20,30,40,50]
>>> [(x[0]*x[1]) for x in zip(list_a,list_b)]
[10, 40, 90, 160, 250]

Answer 2

使用zip()：

list_a = [1,2,3,4,5]
list_b = [10,20,30,40,50]
final = [k*v for k, v in zip(list_a, list_b)]
print final

输出：

[10, 40, 90, 160, 250]

Answer 3

a = [1,2,3,4,5] 
b = [10,20,30,40,50]
print [a[i]*b[i] for i in range(len(b))]

这对你有帮助

Answer 4

a = [1,2,3,4,5]
b = [i*i*10 for i in a]

Answer 5

更清洁的版本是：

a,b = [1,2,3,4,5],[10,20,30,40,50]
for i,j in zip(a,b):
    print '%d x %d = '%(i,j),'%d units'% ((i*j))