# gitignore.io

**Repository Path**: yufeng-boss/gitignore.io

## Basic Information

- **Project Name**: gitignore.io
- **Description**: If you have a dream, defend it! Even with thorns, lose the fury horse's fresh clothes
- **Primary Language**: Python
- **License**: PostgreSQL
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 1
- **Created**: 2021-08-16
- **Last Updated**: 2023-04-08

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

![输入图片说明](http://img02.sogoucdn.com/app/a/100520146/c97bc5ba2c04248ab9a5ef59fc41fb13 "『Python代码』生成指定前缀信用卡卡号
")
# gitignore.io

#### 介绍
昨天朋友给了一套阿峰在线生成信用卡的代码，支持定制卡号，生成有效期，CCV 等。等整理好分享给大家。
生成指定前缀的信用卡卡号，再也不用在线版啦
撸东西更方便了，开心~

#### 函数代码

```
from random import Random
import copy
 
def completed_number(prefix, length):
    """
    'prefix' is the start of the CC number as a string, any number of digits.
    'length' is the length of the CC number to generate. Typically 13 or 16
    """
    generator = Random()
    generator.seed()    # Seed from current time
    ccnumber = prefix
    # generate digits
    while len(ccnumber) < (length - 1):
        digit = str(generator.choice(range(0, 10)))
        ccnumber.append(digit)
  # Calculate sum
    sum = 0
    pos = 0
    reversedCCnumber = []
    reversedCCnumber.extend(ccnumber)
    reversedCCnumber.reverse()
    while pos < length - 1:
        odd = int(reversedCCnumber[pos]) * 2
        if odd > 9:
            odd -= 9
        sum += odd
        if pos != (length - 2):
            sum += int(reversedCCnumber[pos + 1])
        pos += 2
  # Calculate check digit
    checkdigit = ((sum // 10 + 1) * 10 - sum) % 10
    ccnumber.append(str(checkdigit))
    return ''.join(ccnumber)

def credit_card_number(prefixList, howMany=1, length=16):
    generator = Random()
    generator.seed()    # Seed from current time
    if type(prefixList)==str:
        prefixList=[[i for i in prefixList]]
    if type(prefixList[0])==str:
        prefixList=[[i for i in List] for List in prefixList]
    result = []
    while len(result) < howMany:
        ccnumber = copy.copy(generator.choice(prefixList))
        result.append(completed_number(ccnumber, length))
    return result
```



#### 调用示例

```
 #生成前缀为'123456',1个,卡号长度16位
 fakecard = credit_card_number('123456')
 #生成前缀为'123456',1个,卡号长度16位
 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
 fakecard = credit_card_number(['123','234'], 15,16)
```
#### 简单封装


```
wget https://raw.githubusercontent.com/malaohu/ruyo-shell/master/credit_card_number.py
python credit_card_number.py
```
![峰侃公社](http://img04.sogoucdn.com/app/a/100520146/d83508ca31655412d57db251bf781e4e "在这里输入图片标题")


#### 特技

1.  使用 Readme\_XXX.md 来支持不同的语言，例如 Readme\_en.md, Readme\_zh.md
2.  Gitee 官方博客 [blog.gitee.com](https://blog.gitee.com)
3.  你可以 [https://gitee.com/explore](https://gitee.com/explore) 这个地址来了解 Gitee 上的优秀开源项目
4.  [GVP](https://gitee.com/gvp) 全称是 Gitee 最有价值开源项目，是综合评定出的优秀开源项目
5.  Gitee 官方提供的使用手册 [https://gitee.com/help](https://gitee.com/help)
6.  Gitee 封面人物是一档用来展示 Gitee 会员风采的栏目 [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)