random模块 

 1 # 生成随机验证码
 2 # 4位数字的
 3 import random
 4 # 0-9
 5 # 基础版本
 6 # code = ''
 7 # for i in range(4):
 8 #     num = random.randint(0,9)   # 随机产生0-9
 9 #     code += str(num)
10 # print(code)
11 """ 函数版本"""   生成随机验证码 4位数字的
12 def rand_code():
13     code = ''
14     for i in range(4):
15         num = random.randint(0,9)
16         code += str(num)
17     return code
18 
19 
20 print(rand_code())
21 # 6 位 数字+字母
22 import random
23 code = ''
24 for i in range(6):
25     num = str(random.randint(0,9))  # 随机生成数字
26     alph = chr(random.randint(97,122))  # 随机产出小写字母
27     alph_upper = chr(random.randint(65,90))   # 随机产生大写字母
28     atom = random.choice([num, alph, alph_upper ])
29     code += atom
30 print(code)
31 """函数版本"""    6 位 数字+字母
32 import random
33 def rand_code():
34     code = ''
35     for i in range(6):
36         num = str(random.randint(0,9))  # 随机生成数字
37         alph = chr(random.randint(97,122))  # 随机产出小写字母
38         alph_upper = chr(random.randint(65,90))   # 随机产生大写字母
39         atom = random.choice([num, alph, alph_upper ])
40         code += atom
41     return code
42 
43 
44 print(rand_code())
45 """最终版本"""  
46 import random
47 def rand_code(n=6, alph=True):
48     code = ''
49     for i in range(6):
50         num = str(random.randint(0,9))  # 随机生成数字
51         if alph:
52             alph = chr(random.randint(97,122))  # 随机产出小写字母
53             alph_upper = chr(random.randint(65,90))   # 随机产生大写字母
54             num = random.choice([num, alph, alph_upper ])
55         code += num
56      return code
57 
58 
59 print(rand_code(5, alph= False))
60 
61 
62 
63 
64 
65 # ***** 永远不要创建一个和你知道的模块同名的文件名

 

posted @ 2021-11-16 21:24  余鑫2020  阅读(28)  评论(0)    收藏  举报