每日一练—0010题：Python生成字母验证码图像

from PIL import Image, ImageDraw, ImageFont, ImageFilter
from random import randint

def generate_random_char():
    '''生成随机字符，包括数字、大写字母和小写字母'''
    char_type = randint(1, 3)
    if char_type == 1:
        return chr(randint(48, 57))  # 数字
    elif char_type == 2:
        return chr(randint(65, 90))  # 大写字母
    else:
        return chr(randint(97, 122))  # 小写字母

width, height = 250, 50
image = Image.new('RGB', (width, height), (255, 255, 255))  # 创建空白图像
fOnt= ImageFont.truetype('arial.ttf', 30)  # 加载字体

# 绘制背景干扰点
for x in range(width):
    for y in range(height):
        image.putpixel((x, y), (randint(130, 255), randint(130, 255), randint(130, 255)))

draw = ImageDraw.Draw(image)
# 添加验证码文本
for i in range(4):
    char = generate_random_char()
    draw.text((50 * i + 10, 10), char, fOnt=font, fill=(randint(0, 255), randint(0, 255), randint(0, 255)))

image = image.filter(ImageFilter.BLUR)  # 应用模糊效果
image.show()  # 显示图像