Python3 Counter类计算list中元素出现次数

投票结果中，为了对结果数据一目了然，列表中需要统计元素个数，

假设有如下

List = ['zhangsan','lisi','lisi','wangwu','wangwu','lisi','zhangsan','zhangsan','zhangsan','zhangsan','mazi','mazi','wangwu','wangwu','mazi', 'lisi','mazi','mazi','mazi', 'wangwu','mazi']

统计得票数据的示例代码：

from collections import Counter

values = ['zhangsan','lisi','lisi','wangwu','wangwu','lisi','zhangsan','zhangsan','zhangsan','zhangsan','mazi','mazi','wangwu','wangwu','mazi', 'lisi','mazi','mazi','mazi', 'wangwu','mazi',]
values_counts = Counter(values)
top_2 = values_counts.most_common(2)
print(top_2)

输出：

[('mazi', 7), ('zhangsan', 5)]