生成验证码

from captcha.image import ImageCaptcha
import random
import sys
import numpy as np
from PIL import Image

number = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9']


def random_captcha_text(char_set=number, captcha_size=4):
    # 验证码列表
    captcha_text = []
    for i in range(captcha_size):
        # 随机选择
        c = random.choice(char_set)
        # 加入验证码列表
        captcha_text.append(c)
    return captcha_text


# 生成字符对应的验证码
def gen_captcha_text_and_image():
    image = ImageCaptcha()
    # 获得随机生成的验证码
    captcha_text = random_captcha_text()
    # 把验证码列表转换为字符串
    captcha_text = ''.join(captcha_text)
    # 生成验证码
    captcha = image.generate(captcha_text)
    image.write(captcha_text, 'captcha/images/'+captcha_text+'.jpg')  # 写到文件


# 数量少于10000，因为重名
num = 10000
if __name__ == '__main__':
    for i in range(num):
        gen_captcha_text_and_image()
        sys.stdout.write('\r>>Creating image %d/%d' % (i+1, num))
        sys.stdout.flush()  # 刷新缓冲区
    sys.stdout.write('\n')
    sys.stdout.flush()
    print("生成完毕")

　运行结果是：