时间：2021-07-01 10:21:17 帮助过：81人阅读
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》
# -*- 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
# -*- 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
# -*- 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)