常用模块

import os,random,sys,time
import string
print(random.randint(1,100))#包含100
print(random.uniform(1,10))#小数

print(random.choice(string.ascii_lowercase))#随机选择一个值，可循环的就行
print(random.sample(string.ascii_lowercase,3))#随机选择n个值，可循环的就行

l2=random.sample(string.digits,6)#不可能会重复
l=[random.choice(string.digits) for i in range(6)]#可能会重复
print(l2)
print(l)

l1 =[1,2,3,4,5]
random.shuffle(l1)#打乱顺序
print(l1)

#可对字符串排序
l1 = sorted(l1)#排序,升序
l1 = sorted(l1,reverse=True)#排，降序
print(l1)

d={
    ‘zjr‘:100,
    ‘aa‘:78,
    ‘tt‘:98
}
print(d.items())#dict_items([(‘zjr‘, 100), (‘aa‘, 78), (‘tt‘, 98)])
res = sorted(d.items(),key=lambda x:x[1],reverse=True)
print(res)