产生0到9之间的随机整数

from random import randrange
print(randrange(10))

import random
print(random.randint(0,9))

random.randint(a, b)

from random import randrange, uniform

# randrange gives you an integral value
irand = randrange(0, 10)

# uniform gives you a floating-point value
frand = uniform(0, 10)

from random import randint

x = [randint(0, 9) for p in range(0, 10)]

from secrets import randbelow
print(randbelow(10))

>>> import random
>>> nums = [x for x in range(10)]
>>> random.shuffle(nums)
>>> nums
[6, 3, 5, 4, 0, 1, 2, 9, 8, 7]

import numpy as np   
np.random.randint(10, size=(1, 20))

array([[1, 6, 1, 2, 8, 6, 3, 3, 2, 5, 6, 5, 0, 9, 5, 6, 4, 5, 9, 3]])

>>> import random
>>> values = list(range(10))
>>> random.choice(values)
5

>>> values = [1, 2, 3, 5, 7, 10]
>>> random.choice(values)
7

>>> import secrets
>>> values = list(range(10))
>>> secrets.choice(values)
2

import numpy as np
X1 = np.random.randint(low=0, high=10, size=(15,))

print (X1)
>>> array([3, 0, 9, 0, 5, 7, 6, 9, 6, 7, 9, 6, 6, 9, 8])

import numpy as np
X2 = np.random.uniform(low=0, high=10, size=(15,)).astype(int)

print (X2)
>>> array([8, 3, 6, 9, 1, 0, 3, 6, 3, 3, 1, 2, 4, 0, 4])

from random import randrange
X3 = [randrange(10) for i in range(15)]

print (X3)
>>> [2, 1, 4, 1, 2, 8, 8, 6, 4, 1, 0, 5, 8, 3, 5]

from random import randint
X4 = [randint(0, 9) for i in range(0, 15)]

print (X4)
>>> [6, 2, 6, 9, 5, 3, 2, 3, 3, 4, 4, 7, 4, 9, 6]

%timeit np.random.randint(low=0, high=10, size=(15,))
>> 1.64 µs ± 7.83 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)

%timeit np.random.uniform(low=0, high=10, size=(15,)).astype(int)
>> 2.15 µs ± 38.6 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

%timeit [randrange(10) for i in range(15)]
>> 12.9 µs ± 60.4 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

%timeit [randint(0, 9) for i in range(0, 15)]
>> 20 µs ± 386 ns per loop (mean ± std. dev. of 7 runs, 100000 loops each)

>>> import random

lo = 0
hi = 10
size = 5

# A
>>> [lo + int(random.random() * (hi - lo)) for _ in range(size)]
[5, 6, 1, 3, 0]

# B
>>> [random.randint(lo, hi) for _ in range(size)]
[9, 7, 0, 7, 3]

# C
>>> [random.randrange(lo, hi) for _ in range(size)]
[8, 3, 6, 8, 7]

# D
>>> lst = list(range(lo, hi))
>>> random.shuffle(lst)
>>> [lst[i] for i in range(size)]
[6, 8, 2, 5, 1]

# E
>>> [random.choice(range(lo, hi)) for _ in range(size)]
[2, 1, 6, 9, 5]

# F
>>> random.choices(range(lo, hi), k=size)
[3, 2, 0, 8, 2]

# G
>>> random.sample(range(lo, hi), k=size)
[4, 5, 1, 2, 3]

| | random                | numpy.random                     |
|-|-----------------------|----------------------------------|
|A| random()              | random()                         |
|B| randint(low, high)    | randint(low, high)               |
|C| randrange(low, high)  | randint(low, high)               |
|D| shuffle(seq)          | shuffle(seq)                     |
|E| choice(seq)           | choice(seq)                      |
|F| choices(seq, k)       | choice(seq, size)                |
|G| sample(seq, k)        | choice(seq, size, replace=False) |

>>> np.random.normal(loc=5, scale=10, size=size).astype(int)
array([17, 10,  3,  1, 16])

>>> np.random.poisson(lam=1, size=size).astype(int)
array([1, 3, 0, 2, 0])

>>> np.random.lognormal(mean=0.0, sigma=1.0, size=size).astype(int)
array([1, 3, 1, 5, 1])

import numpy as np
print(np.random.randint(0,10))

>>> import random
>>> random.randrange(10)
3
>>> random.randrange(10)
1

>>> [random.randrange(10) for x in range(10)]
[9, 0, 4, 0, 5, 7, 4, 3, 6, 8]

import numpy
X = numpy.random.randint(0, 10, size=10)
print(X)

[4 8 0 4 9 6 9 9 0 7]

import random
print(random.sample(range(10), 10))

n={} 
for i in range(10):
    n[i]=i

for p in range(10):
    print(n.popitem()[1])

import random
n = 1 # specify the no. of numbers
num = random.sample(range(10),  n)
num[0] # is the required number

>>&gt。
输入字符串
>>&gt。
字符串.数字
'0123456789'
>>&gt。
导入随机
>>&gt。
random.SystemRandom().choose(string.digits)
'8'
>>&gt。
随机.系统随机().选择(string.digits)
'1'
>>&gt。
随机.SystemRandom().choose(string.digits)
'8'
>>&gt。
随机.系统随机().选择(string.digits)
'5'

str_Key = ""                                                                                                
str_RandomKey = ""                                                                                          
for int_I in range(128):                                                                                    
      str_Key = random.choice('0123456789')
      str_RandomKey = str_RandomKey + str_Key