Python程序通过List中的Index元素计算功率

给定一个列表，任务是编写一个Python程序，通过其索引值计算每个元素的幂。

Input : test_list = [6, 9, 1, 8, 4, 7]

Output : [1, 9, 1, 512, 256, 16807]

Explanation : 8 * 8 * 8 = 512, as 8 is at 3rd index.

Input : test_list = [6, 9, 1, 8]

Output : [1, 9, 1, 512]

Explanation : 9**1 = 9, as 9 is at 1st index.

方法 1：使用**运算符+循环+ enumerate()

在这种情况下，获取功率的任务是使用 **运算符完成的，并且循环用于遍历元素。 enumerate() 用于获取索引和值。

Python3

# Python3 code to demonstrate working of
# Index Power List
# Using ** operator + loop + enumerate()
  
# initializing list
test_list = [6, 9, 1, 8, 4, 7]
               
# printing original list
print("The original list is : " + str(test_list))
  
# ** does task of getting power
res = []
for idx, ele in enumerate(test_list):
  res.append(ele ** idx)
  
# printing result
print("Powered elements : " + str(res))

输出：

The original list is : [6, 9, 1, 8, 4, 7]
Powered elements : [1, 9, 1, 512, 256, 16807]

方法二：使用pow() +列表推导+ enumerate()

在这里，我们使用 pow() 执行获取功率的任务， enumerate() 用于获取带有值的索引。

蟒蛇3

# Python3 code to demonstrate working of
# Index Power List
# Using pow() + list comprehension + enumerate()
from math import pow
  
# initializing list
test_list = [6, 9, 1, 8, 4, 7]
               
# printing original list
print("The original list is : " + str(test_list))
  
# pow() does task of getting power
# list comprehension for 1 liner alternative
res = [int(pow(ele, idx)) for idx, ele in enumerate(test_list)]
  
# printing result
print("Powered elements : " + str(res))

输出：

The original list is : [6, 9, 1, 8, 4, 7]
Powered elements : [1, 9, 1, 512, 256, 16807]