Python 随机生成中文验证码的实例代码

python代码

 # -*- coding: utf-8 -*-

 import image,imagedraw,imagefont

 import random

 import math, string  

 class randomchar():

   """用于随机生成汉字"""

   @staticmethod

   def unicode():

     val = random.randint(0x4e00, 0x9fbf)

     return unichr(val)  

   @staticmethod

   def gb2312():

     head = random.randint(0xb0, 0xcf)

     body = random.randint(0xa, 0xf)

     tail = random.randint(0, 0xf)

     val = ( head << 8 ) | (body << 4) | tail

     str = "%x" % val

     return str.decode('hex').decode('gb2312')  

  

 class imagechar():

   def __init__(self, fontcolor = (0, 0, 0),

                      size = (100, 40),

                      fontpath = 'wqy.ttc',

                      bgcolor = (255, 255, 255),

                      fontsize = 20):

     self.size = size

     self.fontpath = fontpath

     self.bgcolor = bgcolor

     self.fontsize = fontsize

     self.fontcolor = fontcolor

     self.font = imagefont.truetype(self.fontpath, self.fontsize)

     self.image = image.new('rgb', size, bgcolor)  

   def rotate(self):

     self.image.rotate(random.randint(0, 30), expand=0)  

   def drawtext(self, pos, txt, fill):

     draw = imagedraw.draw(self.image)

     draw.text(pos, txt, font=self.font, fill=fill)

     del draw  

   def randrgb(self):

     return (random.randint(0, 255),

            random.randint(0, 255),

            random.randint(0, 255))  

   def randpoint(self):

     (width, height) = self.size

     return (random.randint(0, width), random.randint(0, height))  

   def randline(self, num):

     draw = imagedraw.draw(self.image)

     for i in range(0, num):

       draw.line([self.randpoint(), self.randpoint()], self.randrgb())

     del draw  

   def randchinese(self, num):

     gap = 5

     start = 0

     for i in range(0, num):

       char = randomchar().gb2312()

       x = start + self.fontsize * i + random.randint(0, gap) + gap * i

       self.drawtext((x, random.randint(-5, 5)), randomchar().gb2312(), self.randrgb())

       self.rotate()

     self.randline(18)  

   def save(self, path):

     self.image.save(path)

调用方法

 ic = imagechar(fontcolor=(100,211, 90))

 ic.randchinese(4)

 ic.save("1.jpeg")