Python Count Occurrences of an Element in a List

Document 对象参考手册Python3 Examples

Define a list, and count how many times an element appears in the list.

For example:

输入 : lst = [15, 6, 7, 10, 12, 20, 10, 28, 10]
       x = 10
输出 : 3

Example 1

def countX(lst, x):
    count = 0
    for ele in lst:
        if (ele == x):
            count = count + 1
    return count
 
lst = [8, 6, 8, 10, 8, 20, 10, 8, 8]
x = 8
print(countX(lst, x))

The output of the above example is:

5

Example 2: Using the count() Method

def countX(lst, x):
    return lst.count(x)
 
lst = [8, 6, 8, 10, 8, 20, 10, 8, 8]
x = 8
print(countX(lst, x))

The output of the above example is:

5

Document 对象参考手册Python3 Examples

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