将你的 QQ 头像（或者微博头像）右上角加上红色的数字，类似于微信未读信息数量那种提示效果

from PIL import Image,ImageFont,ImageDraw

def add_num(in_file,num,out_file='result.jpg'):
    im = Image.open(in_file)
    font = ImageFont.truetype('C:/Windows/fonts/Arial.ttf',50)
    fill_color = '#ff0000'
    #fill_color = 'red'
    draw = ImageDraw.ImageDraw(im)
    width,height = im.size
    draw.text((width-80,0),str(num),fill=fill_color,font=font)
    im.save(out_file)

add_num('qq.jpg',100)

效果: