lis= [1,2,7,5,9,1,4,8,10,1]
print(lis)

[1, 2, 7, 5, 9, 1, 4, 8, 10, 1]

def count_occurrence(lst, x):
   count = 0
   for item in lst:
      if (item == x):
         count = count + 1
   return count
lst =[]
n = int(input("输入元素数和元素："))
for i in range(n):
   item = int(input())
   lst.append(item)
x = int(input("输入要在列表中查找计数的数字："))
y = count_occurrence(lst,x)
print('元素%s在列表中出现%s次'%(x,y))

输入元素数和元素：8  

2  

4  

1  

3  

2  

5  

2  

vowels = ['a', 'e', 'i', 'o', 'i', 'u', 'i', 'o', 'e', 'a']
count=vowels.count('i')
print("The count is" ,count) 

The count is 3

from collections import Counter
l = [1,2,7,5,9,1,4,8,10,1]
x = 1
d = Counter(l)
print('{} 的出现次数为 {}'.format(x, d[x])) 

1 的出现次数为 3