Python 随机生成中文验证码的实例代码

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python代码

复制代码 代码如下:

-- 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) 

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