Python count List 函数用于计算一个项在给定列表中重复出现的次数，其语法如下
list_name.count(list_item)
此函数计算项在给定列表中重复出现的总次数。下面的代码计算整数列表中 10 和 20 的出现次数。
a = [10, 20, 30, 10, 40, 10, 50, 20]
print("Total Number of Times 10 has repeated = ", a.count(10))
print("Total Number of Times 20 has repeated = ", a.count(20))
Total Number of Times 10 has repeated = 3
Total Number of Times 20 has repeated = 2Python count List 示例
在此示例中，我们声明了一个字符串列表，然后对其使用了 count 函数。
Fruits = ['Apple', 'Orange', 'Banana', 'Apple', 'Grape', 'Banana', 'Apple']
print("Total Number of Times 'Apple' has repeated = ", Fruits.count('Apple'))
print("Total Number of Times 'Banana' has repeated = ", Fruits.count('Banana'))
Total Number of Times 'Apple' has repeated = 3
Total Number of Times 'Banana' has repeated = 2如何计算混合列表？
我将在此混合列表上使用此 count 函数。请参阅 Python 中的 列表 和 方法 文章。
MxList = ['Apple', 10, 'Banana', 10, 'Apple', 'Grape', 10, 30, 10, 50, 'Apple']
print("Total Number of Times 'Apple' has repeated = ", MxList.count('Apple'))
print("Total Number of Times 10 has repeated = ", MxList.count(10))
Total Number of Times 'Apple' has repeated = 3
Total Number of Times 10 has repeated = 4如何计算嵌套列表项？
这次，我们对嵌套列表（一个列表包含另一个列表）使用了 count 函数。
MxList = [[10, 20], [20, 30], [10, 20], [40, 50], [10, 80]]
print("Total Number of Times [10,20] has repeated = ", MxList.count([10,20]))
Total Number of Times [10,20] has repeated = 2如何计算字符串列表项？
在此示例中，我们同时使用了字符串列表和整数列表来计算项重复出现的次数。
Fruits = ['Apple', 'Orange', 'Banana', 'Kiwi', 'Apple', 'Kiwi']
numbers = [9, 4, -5, 0, 9, -1, 4, 9]
print("Original : ", Fruits)
#Count of List items
print('Kiwi = ', Fruits.count('Kiwi'))
print('Apple = ', Fruits.count('Apple'))
print('Banana = ', Fruits.count('Banana'))
print("\nOriginal number : ", numbers)
print('9 is repeated = ', numbers.count(9))
print('4 is repeated = ', numbers.count(4))
print('0 is repeated = ', numbers.count(0))
Original : ['Apple', 'Orange', 'Banana', 'Kiwi', 'Apple', 'Kiwi']
Kiwi = 2
Apple = 2
Banana = 1
Original number : [9, 4, -5, 0, 9, -1, 4, 9]
9 is repeated = 3
4 is repeated = 2
0 is repeated = 1如何在 Python 中计算用户输入的整数列表项？
此 Python 程序 允许用户输入长度，并使用 For 循环 将这些数字追加到 intCountList。然后我们使用此方法来计数项 10。
intCountList = []
number = int(input("Please enter the Total Number of List Elements: "))
for i in range(1, number + 1):
value = int(input("Please enter the Value of %d Element : " %i))
intCountList.append(value)
item = int(input("Please enter the Item that you want to Count: "))
print("Total Number of Times has repeated = ", intCountList.count(item))
如何计算用户输入的字符串列表项？
此程序允许用户输入自己的字符串或单词，然后计算该单词的出现次数。
strCountList = []
number = int(input("Please enter the Total Number of Elements: "))
for i in range(1, number + 1):
value = input("Please enter the Value of %d Element : " %i)
strCountList.append(value)
item = input("Please enter the Item that you want to Count: ")
print("Total Number of Times has repeated = ", strCountList.count(item))
Please enter the Total Number of Elements: 5
Please enter the Value of 1 Element : Kiwi
Please enter the Value of 2 Element : Dragon
Please enter the Value of 3 Element : Banana
Please enter the Value of 4 Element : Kiwi
Please enter the Value of 5 Element : Apple
Please enter the Item that you want to Count: Kiwi
Total Number of Times has repeated = 2