Python any()函数

如果给定可迭代对象（列表、字典、元组、集合等）的任何元素为真，则Python any()函数返回 True，否则返回 False。

Syntax: any(iterable)

Parameters: Iterable: It is an iterable object such as a dictionary, tuple, list, set, etc.                 

Returns: Python any() function returns true if any of the items is True.

示例 #1： Python any()函数列表

Python3

# All elements of list are true
l = [ 4, 5, 1]
print(any( l ))
 
# All elements of list are false
l = [ 0, 0, False]
print(any( l ))
 
# Some elements of list are
# true while others are false
l = [ 1, 0, 6, 7, False]
print(any( l ))
 
# Empty List
l = []
print(any( l ))

输出：

True
False
True
False

示例 #2：使用元组处理 any()函数

蟒蛇3

# All elements of tuple are true
t = (2, 4, 6)
print(any(t))
 
# All elements of tuple are false
t = (0, False, False)
print(any(t))
 
# Some elements of tuple are true while
# others are false
t = (5, 0, 3, 1, False)
print(any(t))
 
# Empty tuple
t = ()
print(any(t))

输出：

True
False
True
False

示例 #3：使用集合使用 any()函数

蟒蛇3

# All elements of set are true
s = { 1, 1, 3}
print(any( s ))
 
# All elements of set are false
s = { 0, 0, False}
print(any( s ))
 
# Some elements of set are true while others are false
s = { 1, 2, 0, 8, False}
print(any( s ))
 
#Empty set
s = {}
print(any( s ))

输出：

True
False
True
False

示例 #4：使用字典处理 any()函数

注意：对于字典，如果字典的所有键都为 false 或字典为空，则 any() 返回 False。如果至少有一个键为 True，则 any() 返回 True。

蟒蛇3

# All elements of dictionary are true
d = {1: "Hello", 2: "Hi"}
print(any(d))
 
# All elements of dictionary are false
d = {0: "Hello", False: "Hi"}
print(any(d))
 
# Some elements of dictionary
# are true while others are false
d = {0: "Salut", 1: "Hello", 2: "Hi"}
print(any(d))
 
# Empty dictionary
d = {}
print(any(d))

输出：

True
False
True
False

示例 #5：使用字符串处理 any()函数

蟒蛇3

# Non-Empty String
s = "Hi There!"
print(any(s))
 
# Non-Empty String
s = "000"
print(any(s))
 
# Empty string
s = ""
print(any(s))

输出：

True
True
False

示例 #6： Python任何带条件的函数

它检查满足条件的任何元素，并在找到任何一个元素时返回 True。

蟒蛇3

# Python3 code to demonstrate working of
# Check if any element in list satisfies a condition
# Using any()
 
# initializing list
test_list = [4, 5, 8, 9, 10, 17]
 
# printing list
print("The original list : " + str(test_list))
 
# Check if any element in list satisfies a condition
# Using any()
res = any(ele > 10 for ele in test_list)
 
# Printing result
print("Does any element satisfy specified condition ? : " + str(res))

输出：

The original list : [4, 5, 8, 9, 10, 17]
Does any element satisfy specified condition ? : True

示例 #7：带有 for 循环的 P ython any()函数

蟒蛇3

def any(list_x):
    for item in list_x:
        if item:
            return True
    return False
 
x = [4, 5, 8, 9, 10, 17]
print(any(x))

输出：

True