[Python] random random basis the number of modules (library) method summary

random nonce module (library)

　　1, random.randint (a, b) : generating a random integer within a certain range
　　　　[a, b], can take the a, can be taken to B
　　2, random.random (): random between 0-1 floating point number
　　　　[0, 1), can take to 0, 1 fail to
　　3, random.uniform (a, b) : a random real number within a range
　　　　[a, B], can take the a, can take to B
　　. 4, random.randrange (start, STOP, STEP): generating a random integer within a range
　　　　[start, stop), can take to start, fail to STOP
　　. 5, the random.choice (sequence): returns the random sequence in a number of
　　6, random.shuffle (): break, disrupting, chaordic
　　　　Note: this function does not return a value, the result of the direct effect on the original scrambled list
　　7, random.sample (population, k ): sampling
　　　　Population: sampling an object
　　　　k: the number of samples

 1 import random
 2 
 3 r1 = random.random()
 4 print(r1)  # 0.2682469766947404
 5 
 6 r2 = random.randint(1, 10)
 7 print(r2)  # 10
 8 
 9 r3 = random.uniform(1, 10)
10 print(r3)  # 5.296020606206669
11 
12 r4 = random.randrange(0, 11, 2)
13 print(r4)  # 10
14 
15 r5 = random.choice(["rose", " Cucumber " , " noodles " ])
 16  Print (R5)   # cucumber 
. 17  
18 is List1 = [. 1, 2,. 3,. 4,. 5 ]
 . 19 R6 = random.shuffle (List1)   # None 
20 is  Print (List1)   # [. 4,. 1, 2,. 3,. 5] 
21 is  
22 is R7 = random.sample (List1,. 3 )
 23 is  Print (R7)   # [. 3, 2,. 5]