Two ways to randomly generate verification codes using Python
There are many ways to randomly generate verification codes in Python. Today I will list two for you. You can also modify it on this basis and design a verification code method that suits you
Method 1:
Use the range method. For students who are unclear about the range method, please refer to the article "range() function developed in python"
# -*- coding: utf-8 -*- import random def generate_verification_code(len=6): ''' 随机生成6位的验证码 ''' # 注意: 这里我们生成的是0-9A-Za-z的列表,当然你也可以指定这个list,这里很灵活 # 比如: code_list = ['P','y','t','h','o','n','T','a','b'] # PythonTab的字母 code_list = [] for i in range(10): # 0-9数字 code_list.append(str(i)) for i in range(65, 91): # 对应从“A”到“Z”的ASCII码 code_list.append(chr(i)) for i in range(97, 123): #对应从“a”到“z”的ASCII码 code_list.append(chr(i)) myslice = random.sample(code_list, len) # 从list中随机获取6个元素,作为一个片断返回 verification_code = ''.join(myslice) # list to string return verification_code
Method 2:
Use the randint method
# -*- coding: utf-8 -*- import random def generate_verification_code_v2(): ''' 随机生成6位的验证码 ''' code_list = [] for i in range(2): random_num = random.randint(0, 9) # 随机生成0-9的数字 # 利用random.randint()函数生成一个随机整数a,使得65<=a<=90 # 对应从“A”到“Z”的ASCII码 a = random.randint(65, 90) b = random.randint(97, 122) random_uppercase_letter = chr(a) random_lowercase_letter = chr(b) code_list.append(str(random_num)) code_list.append(random_uppercase_letter) code_list.append(random_lowercase_letter) verification_code = ''.join(code_list) return verification_code
Test:
code = generate_verification_code(6) code2 = generate_verification_code_v2() print code print code2
Output result:
Glc5Tr Hr6t7B
I personally prefer the first method, which is more flexible and can set the verification code length at will.
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