隨機生成驗證碼

# -*- coding: utf-8 -*-

"""created on mon sep 16 01:21:02 2019
@author: administrator
"""import random
from captcha.image  import imagecaptcha
import numpy as np
from pil  import image
import matplotlib.pyplot as plt
num=['0','1','2','3','4','5','6','7','8','9']
alph=['a','b','c','d','e','f','g','h','i','j'  
,'l','m','n','o','p','q','r','s','t','u',
'v','w','x','y','z']
alph=['a','b','c','d','e','f','g','h','i','j'  
,'l','m','n','o','p','q','r','s','t','u',
'v','w','x','y','z']
def random_captcha_text(size=4,charset=num+alph+alph):
captcha_text=
for i in range(size):
c=random.choice(charset)
return captcha_text
def gen_captcha_image():
#生成驗證碼物件
image=imagecaptcha() 
#生成驗證碼字母數字的組合的字串
captcha_text=random_captcha_text()
captcha_text="".join(captcha_text)
#傳入字串,生成乙個png
catpchainfo=image.generate(captcha_text)
#開啟image物件，生成驗證碼的資訊和
captcha_image=image.open(catpchainfo)
captcha_image=np.array(captcha_image)
return captcha_text,captcha_image
if __name__=="__main__":
#生成驗證碼字元及
text,image=gen_captcha_image()
#顯示出生成的驗證碼和
f=plt.figure()
ax=f.add_subplot(111)
ax.text(1.1,1.9,text,ha='center',va='center')
plt.imshow(image)
plt.show()

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