random模块

import random
# 随机小数
print(random.random()) # 随机0-1小数
print(random.uniform(1,5)) # 随机自定义小数
# 随机整数
print(random.randint(1,2))# 随机整数，可以取到2 顾头顾尾 [1,2]
print(random.randrange(1,2))# 随机整数，不可以取到2 顾头不顾尾 [1,2)
print(random.randrange(1,9,2))# 随机整数，步长2 [1,3,5,7]
# 随机抽取
l = ['a',1,(6,3),'abc']
# l1 = [1,2,3,'1']
print(random.choice(l)) # 随机抽取一个内容
print(random.sample(l,2))# 随机抽取几项内容
print(random.choices(l))# 随机抽取一项内容放入列表
# 打乱顺序
l = ['a',1,(6,3),'abc']
random.shuffle(l)
print(l)

# 字母+数字验证码 方法1
import random

super_str = [chr(i) for i in range(65,91)]
low_str = [chr(i) for i in range(97,123)]
num = [str(i) for i in range(10)]

code = ''
for i in range(6):
    code += random.choice(super_str+low_str+num)

print(code)

# 字母+数字验证码 方法2
import random

code = ''
for i in range(6):
    rand_num = str(random.randint(0,9))
    super_str = chr(random.randint(65,90))
    low_str = chr(random.randint(97,122))
    code += random.choice([rand_num,super_str,low_str])

print(code)