Python 随机生成中文验证码的实例代码

 # -*- 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)

 

 ic = ImageChar(fontColor=(100,211, 90))

 

 ic.randChinese(4)

 ic.save("1.jpeg")