Python 简明教程

Python - List Exercises

Python List Exercise 1

Python程序查找给定列表中的唯一数字。

Python program to find unique numbers in a given list.

L1 = [1, 9, 1, 6, 3, 4, 5, 1, 1, 2, 5, 6, 7, 8, 9, 2]
L2 = []
for x in L1:
   if x not in L2:
      L2.append(x)
print (L2)

它将生成以下 output −

It will produce the following output −

[1, 9, 6, 3, 4, 5, 2, 7, 8]

Python List Exercise 2

python程序查找列表中所有数字的和。

Python program to find sum of all numbers in a list.

L1 = [1, 9, 1, 6, 3, 4]
ttl = 0
for x in L1:
   ttl+=x
print ("Sum of all numbers Using loop:", ttl)
ttl = sum(L1)
print ("Sum of all numbers sum() function:", ttl)

它将生成以下 output −

It will produce the following output −

Sum of all numbers Using loop: 24
Sum of all numbers sum() function: 24

Python List Exercise 3

Python程序创建5个随机整数的列表。

Python program to create a list of 5 random integers.

import random
L1 = []
for i in range(5):
   x = random.randint(0, 100)
   L1.append(x)
print (L1)

它将生成以下 output −

It will produce the following output −

[77, 3, 20, 91, 85]