【每日一坑 1】 随机取数

歪脑特

1. # Randomly pick m numbers from 1~n. 1<=m<=n.
   
2. 
   
3. import random
   
4. 
   
5. n = int(input("Input a value for n: "))
   
6. m = int(input("Input a value for m: "))
   
7. 
   
8. L = list(range(1,n))
   
9. MList = []
   
10. 
    
11. for i in range(m):
    
12.     tmp = random.choice(L)
    
13.     if tmp in MList:
    
14.         tmp = random.choice(L)
    
15.     MList.append(tmp)
    
16. 
    
17. print(MList)

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xuefu

byron 发表于 2013-12-13 08:55
你这是C啊？

楼主没说一定要用Python啊。。。吱吱，还不会Python

byron

xuefu 发表于 2013-12-13 11:47
楼主没说一定要用Python啊。。。吱吱，还不会Python

嗯嗯，用C很厉害的。

aurora

来填坑了~
def m(m, n):
    import random
    return [random.randint(1, n) for i in xrange(m)]
   

vose

1. #coding:utf-8
   
2. #从1到n 取m个数 1<=m<=n
   
3. from random import randint
   
4. 
   
5. print "---------------------------------"
   
6. 
   
7. try:
   
8.     n = input("Please input number of N > ")
   
9. except NameError:
   
10.     print "Please check your input, needs number only"
    
11.     n = input("Please input number of N > ")
    
12.    
    
13. number_list = []
    
14. for i in range(1,n+1):
    
15.     number_list.append(i)
    
16.    
    
17. m = randint(1,n)
    
18. print "Get",m,"number"
    
19. get_number = []
    
20. for i in range(0,m):
    
21.     x = randint(1,n-1)
    
22.     get_number.append(number_list[x])
    
23.    
    
24. print "\nDone\n"
    
25. for i in get_number:
    
26.     print i,
    
27.    
    
28. print "\n---------------------------------"

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沈小黑

#从1到n取m个数，不重复
import random
print('请输入取数的范围1～n')
n=int(input())
print('请输入取数的个数')
m=int(input())


a=[]
for i in range(1,n+1):
    a.append(i)

print('These figures are:')
for i in range(1,m+1):
    character=random.choice(a)
    a.remove(character)
    print(character)
   

scz_000

1. # -*- coding:utf-8 -*-
   
2. from random import choice
   
3. n=raw_input('Please input a number n:')
   
4. m=raw_input('Please input a number m(1=<m<=n):')
   
5. li=[]
   
6. for i in range(1,int(n)+1):#将1到n个数放入列表
   
7.     li.append(i)
   
8. for j in range(0,int(m)):#m次提取随机数并输出
   
9.     a=choice(li)
   
10.     print a
    
11.     p=li.index(a)
    
12.     li.pop(p)
    

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想在raw_input里输入中文时又出现乱码了，求先生指教

fl0w

randomList.py

1. #! /usr/bin/env python
   
2. 
   
3. import sys
   
4. import random
   
5. 
   
6. if __name__ == "__main__":
   
7.     if len(sys.argv) != 3:
   
8.         print 'Error! please print like this : ./randomList.py 5 3'
   
9.     else:
   
10.         n = int(sys.argv[1])
    
11.         m = int(sys.argv[2])
    
12.         #print n,m
    
13.         if m > n:
    
14.             print 'Input error,the first number must large than or equal to the second number'
    
15.         else:
    
16.             originList = range(1,n+1)
    
17.             for i in range(n - m):
    
18.                 x = random.choice(originList)
    
19.                 originList.remove(x)
    
20.             else:
    
21.                 print originList
    

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h01m3s

1. # -*- coding: utf-8 -*-
   
2. #题目：从1~n中，随机取m个数。1<=m<=n
   
3. 
   
4. import random
   
5. 
   
6. def pick():
   
7.         '''
   
8.         Please make sure n, m are integers and 1 <= m <= n.
   
9.         '''
   
10.         try:
    
11.                
    
12.                 n = int(input('Give me a range of numbers: '))
    
13.                 m = int(input('Tell me how many numbers that you want to pick: '))
    
14.                 if 1 <= m <= n:
    
15.                         print (sorted(random.sample([i for i in range(1, int(n)+1)], int (m))))
    
16.                 else:
    
17.                         print pick.__doc__
    
18. 
    
19.         except:
    
20.                 print pick.__doc__
    
21. 
    
22. 
    
23. pick()

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借鉴了nodejx的random.sample用法

jox

我试试，取出不重复的值

1. import random
   
2. 
   
3. def pick_M_from_N(n, m):
   
4. 
   
5.   rawArr = range(1, n + 1)
   
6.   resultArr = []
   
7. 
   
8.   for i in range(0, m):
   
9.     arrLength = len(rawArr)
   
10.     pickedIndex = random.randint(0, arrLength - 1)
    
11.     resultArr.append(rawArr[pickedIndex])
    
12.     del rawArr[pickedIndex]
    
13.    
    
14.   return(resultArr)
    
15.   
    
16. if __name__ == "__main__":
    
17.     print(pick_M_from_N(33, 6))
    
18.     print(pick_M_from_N(16, 1))

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