在Python中,求奇数可以通过以下几种方法实现:
1. 使用取模运算符(%):
num = int(input("请输入一个整数:"))
if num % 2 == 1:
print(num, "是奇数")
else:
print(num, "是偶数")
2. 使用位运算符(&):
num = int(input("请输入一个整数:"))
if num & 1 == 1:
print(num, "是奇数")
else:
print(num, "是偶数")
3. 使用`divmod()`函数:
num = int(input("请输入一个整数:"))
quo, rem = divmod(num, 2)
if rem == 1:
print(num, "是奇数")
else:
print(num, "是偶数")
4. 使用列表推导式:
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
odd_numbers = [number for number in numbers if number % 2 != 0]
print("奇数:", odd_numbers)
5. 使用`filter()`函数:
def is_odd(n):
return n % 2 == 1
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
odd_numbers = list(filter(is_odd, numbers))
print("奇数:", odd_numbers)
6. 使用`random`模块生成随机奇数:
import random
NUM = int(input("请输入一个整数:"))
list1 = []
while len(list1) < NUM:
a = random.randint(1, )
if a % 2 == 1:
list1.append(a)
print(list1)
7. 使用`while`循环求和:
sum = 0
n = 99
while n > 0:
sum = sum + n
n = n - 2
print(sum)