Python 计算元素在列表中出现的次数
定义一个列表,并计算某个元素在列表中出现的次数。
例如:
输入 : lst = [15, 6, 7, 10, 12, 20, 10, 28, 10] x = 10 输出 : 3
实例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))
以上实例输出结果为:
5
实例2
def countX(lst, x): return lst.count(x) lst = [8, 6, 8, 10, 8, 20, 10, 8, 8] x = 8 print(countX(lst, x))
以上实例输出结果为:
5