每天一个小程序—0010题（验证码生成）

第 0010 题：使用 Python 生成类似于下图中的字母验证码图片

 1 from PIL import Image, ImageDraw, ImageFont, ImageFilter
 2 from random import randint
 3 
 4 def rnd_char():   #生成随机数字或字母
 5     tmp = randint(1,3)  #前者是下限，后者是上限
 6     if tmp == 1:
 7         return randint(48,57)
 8     elif tmp == 2:
 9         return randint(65,90)
10     else:
11         return randint(97,122)
12 
13 w = 250
14 h = 50
15 im = Image.new('RGB', (w,h), (255,255,255))
16 font = ImageFont.truetype('C:/windows/fonts/Arial.ttf', 30)
17 draw = ImageDraw.Draw(im)
18 
19 for i in range(w):  #一个一个像素点填充
20     for j in range(h):
21         draw.point((i, j), fill = (randint(130,255),randint(130,255),randint(130,255)))
22 
23 for i in range(4):  #添加验证码
24     draw.text((50*(i+1),5), chr(rnd_char()), font = font, fill = (randint(0,255),randint(0,255),randint(0,255)))
25 im = im.filter(ImageFilter.BLUR)  # 模糊处理
26 
27 im.show()