生成器 – 没脚的小鸟

函数代码

1from random import Random
2import copy
3  
4def completed_number(prefix, length):
5    """
6    'prefix' is the start of the CC number as a string, any number of digits.
7    'length' is the length of the CC number to generate. Typically 13 or 16
8    """
9    generator = Random()
10    generator.seed()    # Seed from current time
11    ccnumber = prefix
12    # generate digits
13    while len(ccnumber) < (length - 1):
14        digit = str(generator.choice(range(0, 10)))
15        ccnumber.append(digit)
16  # Calculate sum
17    sum = 0
18    pos = 0
19    reversedCCnumber = []
20    reversedCCnumber.extend(ccnumber)
21    reversedCCnumber.reverse()
22    while pos < length - 1: odd = int(reversedCCnumber[pos]) * 2 if odd > 9:
23            odd -= 9
24        sum += odd
25        if pos != (length - 2):
26            sum += int(reversedCCnumber[pos + 1])
27        pos += 2
28  # Calculate check digit
29    checkdigit = ((sum // 10 + 1) * 10 - sum) % 10
30    ccnumber.append(str(checkdigit))
31    return ''.join(ccnumber)
32  
33def credit_card_number(prefixList, howMany=1, length=16):
34    generator = Random()
35    generator.seed()    # Seed from current time
36    if type(prefixList)==str:
37        prefixList=[[i for i in prefixList]]
38    if type(prefixList[0])==str:
39        prefixList=[[i for i in List] for List in prefixList]
40    result = []
41    while len(result) < howMany:
42        ccnumber = copy.copy(generator.choice(prefixList))
43        result.append(completed_number(ccnumber, length))
44    return result

调用示例
#生成前缀为’123456′,1个,卡号长度16位

`1`	`fakecard = credit_card_number('123456')`

#生成前缀为’123456′,1个,卡号长度16位

`1`	`fakecard = credit_card_number('123456',1,16)`

#生成前缀为’123’或’234’的信用卡卡号，共15个，卡号长度16位

`1`	`fakecard = credit_card_number(['123','234'], 15,16)`

简单封装

`1`	`wget https://raw.githubusercontent.com/malaohu/ruyo-shell/master/credit_card_number.py`

`2`	`python credit_card_number.py`

原文链接： https://51.ruyo.net/8293.html

Tag: 生成器

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