获取数组中数量最多的元素，也就是最频繁的那个元素，方法有很多，下面是3种最简单的：
用max函数
sample = [1,2,3,3,3,4,5,5] max(set(sample), key=sample.count)用collections包的Counter函数
from collections import Counter sample = [1,2,3,3,3,4,5,5] data = Counter(sample) data.most_common(1)[0][0] # data.most_common(1)[0][1] # 就是相应的最高频元素的频次用statistics包的mode函数
from statistics import mode mode(sample) >>> a = [1,1,1,1,2,2,2,2,3,3,3,1,1,2,3,1,3,1,3,1,3,1,2,3,1,3] >>> a [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 1, 1, 2, 3, 1, 3, 1, 3, 1, 3, 1, 2, 3, 1, 3] >>> set(a) {1, 2, 3} >>> a.count(1) 11参考：https://www.cnblogs.com/arkenstone/p/6838812.html
