Python 程序：列印奇數位置的列表項

寫一個 Python 程序，列印奇數位置或奇數索引位置的列表項。在這個 Python 示例中，我們使用列表切片，從 0 開始，遞增 2，以列表長度(列表的末尾)結束。

odList = [2, 4, 7, 11, 14, 22, 19, 90]

print('Printing the List Items at Odd Position')
print(odList[0:len(odList):2])

在這個 Python 程序中，我們使用 for 循環範圍來迭代列表項，並在奇數索引位置列印列表項。

odList = [36, 48, 77, 55, 90, 128, 193, 240]

print('Printing the List Items at Odd Position')
for i in range(0, len(odList), 2):
    print(odList[i], end = '  ')

Printing the List Items at Odd Position
36  77  90  193 

odList = [14, 35, 78, 90, 120, 67, 98]

print('Printing the List Items at Odd Position')
i = 0
while i < len(odList):
    print(odList[i], end = '  ')
    i = i + 2

Printing the List Items at Odd Position
14  78  120  98 

在本 Python 列表中奇數位置的項目示例中，for 循環從 0 迭代到列表長度。if 條件檢查索引位置除以二是否等於 0。如果為真，列印數字。

import numpy as np

odlist = []
odListTot = int(input("Total List Items to enter = "))

for i in range(1, odListTot + 1):
    odListvalue = int(input("Please enter the %d List Item = "  %i))
    odlist.append(odListvalue)

print('\nPrinting the List Items at Odd Position')
for i in range(0, len(odlist), 2):
    print(odlist[i], end = '  ')

print('\nPrinting the List Items at Odd Position')
for i in range(len(odlist)):
    if i % 2 == 0:
        print(odlist[i], end = '  ')

Total List Items to enter = 8
Please enter the 1 List Item = 14
Please enter the 2 List Item = 24
Please enter the 3 List Item = 34
Please enter the 4 List Item = 44
Please enter the 5 List Item = 54
Please enter the 6 List Item = 64
Please enter the 7 List Item = 74
Please enter the 8 List Item = 84

Printing the List Items at Odd Position
14  34  54  74  
Printing the List Items at Odd Position
14  34  54  74