词频统计，字典成绩排序

# 统计词频
from random import randint
from collections import Counter

date = [randint(1, 10) for x in range(1, 21)]
# date1 = {k:randint(1,50) for k in range(20)}   # 随机生成20个元素的字典

print(date)
c = Counter(date)
print(c[5])  # 统计5出现的次数
print(c.most_common(5))  # 统计出频率最高的5个数

# 成绩统计
sore = {k: randint(60, 100) for k in "abcdefghij"}  # 随机生成一个成绩字典
print(sore)
# print(sore.keys(),sore.values(),sore.items())
print(sore.items())                       # 将列表转化为元组
x = sorted(sore.items(), key=lambda x: x[1])    # 排序
x.reverse()           # 反序
print(x)