random

#!/usr/bin/env python
import random

print(random.random())
print(random.randint(1,3))#0-3
print(random.randrange(3))#0-2
print(random.choice('abcdef'))#
print(random.sample('abcdefgh',2))
print(random.uniform(1,3))#浮点
a = [1,2,3,4,5,6,7]
print(random.shuffle(a))#打乱
print(a)

print("-------------------")
checkcode=''
for i in range(4):
    #current=random.randint(0,9)
    #current = random.sample('0123456789abcdefghijk',1)
    current = random.randrange(0,4)
    if current == i:
        tmp=chr(random.randint(65,90))
    else:
        tmp = random.randint(0,9)
    checkcode += str(tmp)
print(checkcode)

#!/usr/bin/env python
import random

print(random.random())
print(random.randint(1,3))#0-3
print(random.randrange(3))#0-2
print(random.choice('abcdef'))#
print(random.sample('abcdefgh',2))
print(random.uniform(1,3))#浮点
a = [1,2,3,4,5,6,7]
print(random.shuffle(a))#打乱
print(a)

print("-------------------")
checkcode=''
for i in range(4):
    #current=random.randint(0,9)
    #current = random.sample('0123456789abcdefghijk',1)
    current = random.randrange(0,4)
    if current == i:
        tmp=chr(random.randint(65,90))
    else:
        tmp = random.randint(0,9)
    checkcode += str(tmp)
print(checkcode)