from PIL import Image, ImageDraw, ImageFont
from random import choice, randint, randrange
import string

候选字符集,大小写字母+数字

chrs = string.ascii_letters + string.digits
def rand_chars(length):
"""
返回length个随机字符串
"""
result = ''.join(choice(chrs) for _ in range(length))
return result
def rand_color():
"""
设置随机色彩
"""
r = randint(0, 255)
g = randint(0, 255)
b = randint(0, 255)
return (r, g, b)
def draw_rand_line(num, size, draw):

"""绘制随机烦扰线"""# 绘制随机烦扰线，这里设置为8条for i in range(num):    start = (0, randrange(size[1]))    end = (size[0], randrange(size[1]))    draw.line([start, end], fill=rand_color(), width=1)# 绘制随机弧线for i in range(8):    start = (-50, -50) # 起始地位在外边看起来才会像弧线    end = (size[0]+10, randint(0, size[1]+10))    draw.arc(start+end, 0, 360, fill=rand_color())

def draw_rand_point(size, draw):

"""绘制随机烦扰点"""for i in range(int(size[0]*size[1]*0.07)): # 7%密度的烦扰像素    draw.point((randrange(size[0]), randrange(size[1])), fill=rand_color()) # randrange取值范畴是左开右闭

def verify_code(size, chrNumber, bgcolor=(255, 255, 255)):

"""定义图片大小，验证码长度，背景色彩"""# 创立空白图像image = Image.new('RGB', size, bgcolor)# 创立绘图对象draw = ImageDraw.Draw(image)# 创立font对象font = ImageFont.truetype('c:\\windows\\fonts\\Arial.ttf', 48) # 选定一款零碎字体# 生成并计算随机字符的宽度和高度text = rand_chars(chrNumber)width, height = draw.textsize(text, font)# 绘制字符串x_start = 5char_w = width // chrNumber - [股指期货](https://www.gendan5.com/ff/sf.html)2 # 计算每个字符宽度for i in range(chrNumber):    position = (x_start, (size[1]-height)//2+randint(-10, 10)) # 字符坐标, Y坐标高低浮动    draw.text(xy=position, text=text[i], font=font, fill=rand_color()) # 绘制函数    x_start += char_w + 1image.show()# 绘制随机色彩随机地位的烦扰像素draw_rand_point(size, draw)image.show() # 绘制烦扰线draw_rand_line(8, size, draw)image.show()# 保留图片image.save('Veri_code.jpg')

if name == "__main__":

# load_image()verify_code((200, 100), 6, (255, 255, 255))