Python示例：以逆序打印列表项

Python 示例

编写一个 Python示例，以逆序打印列表项。在 Python 中，我们可以使用带有负值的列表切片来反转列表项，或者使用列表反转方法。

a = [4, 7, 9, 11, 22, 44, 59]

print('Printing the List Items in Rererse')
print(a[::-1])

a.reverse()
print('\nPrinting the List Items in Rererse')
print(a)

在这个 Python示例中，我们使用 for 循环从最后到第一次迭代列表项，以逆序打印列表项。

a = [10, 20, 30, 40, 50, 60]

for i in range(len(a) - 1, -1, -1):
    print(a[i], end = '  ')

60  50  40  30  20  10 

这个 Python 示例允许使用 for 循环输入列表项并以相反的顺序打印它们。

list1 = []
Number = int(input("Total Number of List Items to enter = "))

for i in range(1, Number + 1):
    item = int(input("Please enter the %d Value = "  %i))
    list1.append(item)

for i in range(len(list1) - 1, -1, -1):
    print(list1[i], end = '  ')

Total Number of List Items to enter = 7
Please enter the 1 Value = 9
Please enter the 2 Value = 11
Please enter the 3 Value = 22
Please enter the 4 Value = 14
Please enter the 5 Value = 67
Please enter the 6 Value = 89
Please enter the 7 Value = 123

123  89  67  14  22  11  9 

Python示例，使用 while 循环以相反的顺序打印列表项。

list1 = []
Number = int(input("Total Number of List Items to enter = "))

i = 1
while i <= Number:
    item = int(input("Please enter the %d Value = "  %i))
    list1.append(item)
    i = i + 1

print('Printing the List Items in Rererse')
i = len(list1) - 1
while i >= 0:
    print(list1[i], end = '  ')
    i = i - 1

Total Number of List Items to enter = 8
Please enter the 1 Value = 23
Please enter the 2 Value = 33
Please enter the 3 Value = 43
Please enter the 4 Value = 53
Please enter the 5 Value = 63
Please enter the 6 Value = 73
Please enter the 7 Value = 83
Please enter the 8 Value = 93
Printing the List Items in Rererse
93  83  73  63  53  43  33  23