Question

我希望能够打印列表中某个字符或单词的出现次数。

''' Python代码 '''

list_elem=['a','x','e','x','i','x','o','x','u']

count_of_element=list_elem.count('x')

print("Count of a particular element in the list is : ",count_of_element)

Answer 1

使用collections.Counter：

from collections import Counter

list_elem = ['a','x','e','x','i','x','o','x','u']

c = Counter(list_elem)

for k, v in c.items():
    print(f"Count of {k} element in the list is : {v}")

输出：

Count of a element in the list is : 1
Count of x element in the list is : 4
Count of e element in the list is : 1
Count of i element in the list is : 1
Count of o element in the list is : 1
Count of u element in the list is : 1

Answer 2

遍历列表中的每个项目，并检查其是否等于要查找的项目。数平等

def count(list_elem_to_find, lst):
    count_of_item = 0
    for item in lst:
        if item == list_elem_to_find:
            count_of_item += 1
    return count_of_item
list_elem=['a','x','e','x','i','x','o','x','u']
count_of_x = count('x', list_elem)
print("Count of x in list: " + str(count_of_x))

我想在列表中打印每个单词以及该单词/元素的相应出现

2 个答案: