识别验证码系列（1）验证码的生成 保存成功 2018-7-31

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

def gen_captcha_text_and_image():
    image=ImageCaptcha()
    #得到随机生成的验证码
    captcha_text=random_captcha_text()
    #吧验证码转换为字符串
    captcha_text = "".join(captcha_text)
    #生成验证码
    captcha=image.generate(captcha_text)
    # image.save(captcha_text,'image/',captcha_text + '.jpg')
    #image.write(captcha_text,'captcha/image/',captcha_text + '.jpg')
    image.write(captcha_text, captcha_text + '.jpg')#这样就行
num=1000
if __name__=='__main__':
    for i in range(num):
        gen_captcha_text_and_image()
        sys.stdout.write('Creating image %d/%d'%(i+1,num))
        sys.stdout.write('\n')
        sys.stdout.flush()
    sys.stdout.write('\n')
    sys.stdout.flush()

    print('ok')