使用python生成随机验证码的方法有很多种,今天小编给大家分享两种方法,大家可以灵活运用这两种方法,设计出适合自己的验证码方法。
方法一:
利用range方法,对于range方法不清楚的同学,请参考文章《python开发的range()函数》
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# -*- coding: utf-8 -*- import random def generate_verification_code( len = 6 ): ''' 随机生成6位的验证码 ''' # 注意: 这里我们生成的是0-9A-Za-z的列表,当然你也可以指定这个list,这里很灵活 # 比如: code_list = ['P','y','t','h','o','n','T','a','b'] # PythonTab的字母 code_list = [] for i in range ( 10 ): # 0-9数字 code_list.append( str (i)) for i in range ( 65 , 91 ): # 对应从“A”到“Z”的ASCII码 code_list.append( chr (i)) for i in range ( 97 , 123 ): #对应从“a”到“z”的ASCII码 code_list.append( chr (i)) myslice = random.sample(code_list, len ) # 从list中随机获取6个元素,作为一个片断返回 verification_code = ''.join(myslice) # list to string return verification_code |
方法二:
利用randint方法
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# -*- coding: utf-8 -*- import random def generate_verification_code_v2(): ''' 随机生成6位的验证码 ''' code_list = [] for i in range ( 2 ): random_num = random.randint( 0 , 9 ) # 随机生成0-9的数字 # 利用random.randint()函数生成一个随机整数a,使得65<=a<=90 # 对应从“A”到“Z”的ASCII码 a = random.randint( 65 , 90 ) b = random.randint( 97 , 122 ) random_uppercase_letter = chr (a) random_lowercase_letter = chr (b) code_list.append( str (random_num)) code_list.append(random_uppercase_letter) code_list.append(random_lowercase_letter) verification_code = ''.join(code_list) return verification_code |
测试:
code = generate_verification_code(6)
code2 = generate_verification_code_v2()
print code
print code2
输出结果:
Glc5Tr
Hr6t7B
我个人更倾向于第一种方法,更加灵活,可以随意设置验证码长度。
Python 随机生成中文验证码
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# -*- 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) |