用captchac框架生成验证码

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Sun Mar 25 19:06:46 2018
@author: zlg
"""
from captcha.image import ImageCaptcha＃验证码生成框架
import numpy as np
import matplotlib.pyplot as plt
from PIL import Image＃图像处理标准库
import random 

number = ['0','1','2','3','4','5','6','7','8','9']
alphabet = ['a','b','c','d','e','f','g']
ALPHABT = ['A','B','C','D','E','F','G']

＃验证码中的字符
def random_captcha_text(char_set=number+alphabet+ALPHABT,captcha_size=8):
    captcha_text = []
    for i in range(captcha_size):
        c = random.choice(char_set)
        captcha_text.append(c)＃连接元素
    return captcha_text

＃生成验证码
def gen_capthcha_text_and_image():
    image = ImageCaptcha()
    captcha_text = random_captcha_text()
    captcha_text = ''.join(captcha_text)＃用于把数组中的所有元素放入一个字符串

    captcha = image.generate(captcha_text)
    ＃image.write(captcha_text,captcha_text+'.jpg')
    ＃先生成后保存，参数１是内容，参数二是图片保存名称，三是图片格式

    captcha_image = Image.open(captcha)
    captcha_image = np.array(captcha_image)＃将图片数据保存为矩阵
    return captcha_text,captcha_image

if __name__ == '__main__':
    text,image = gen_capthcha_text_and_image()

    f = plt.figure()
    ax = f.add_subplot(212)＃参数212的意思是：将画布分割成2行1列，图像画在从左到右从上到下的第2块，
    ax.text(0.1,0.1,text,ha='center',va='center',transform=ax.transAxes)
    plt.imshow(image)#参数为矩阵
    plt.show()

http://blog.topspeedsnail.com/archives/10858