## random随机
print(random.random())##随机浮点数0-1
print(random.randint(1,2))###随机整数，包括前和后
print(random.randrange(0,13))###随机整数,包前不包尾
print(random.uniform(1,10))###随机1-10的浮点数
print(random.choices("fiuadfffd"))##随机字符
print(random.sample("caizhonge",3))##随机从字符串中选取特定数量的字符
print(random.choice(["apple","per","cia","ca"]))##随机选取字符串
##洗牌
ir = [1,2,3,4,5,6,7,8]
random.shuffle(ir)
print(ir)
##验证码
T=random.sample("qwertyuioplkjhgfdsazxcvbnmQWERTYUIOPLKJHGFDSAZMNBVCX0123456789",4)
coa = ""
for i in T:
coa += str(i)
print(coa)
