python练习小册1

6月18日

首先是一个关于图片水印的，通过使用PIL模块进行的，

from PIL import Image,ImageDraw,ImageFont

def add_num(img):
    draw = ImageDraw.Draw(img)
    myfont = ImageFont.truetype('C:/windows/fonts/Arial.ttf', size=40)
    fillcolor = "#ff0000"
    width, height = img.size
    draw.text((width-50, 5), '99', font=myfont, fill=fillcolor)
    img.save('result.jpg','jpeg')
    img.show
    return 0
if __name__ == '__main__':
    image = Image.open('1.jpg')
    add_num(image)
    image.show()

第二个便是随机生成200激活码

首先利用random模块进行对字母数字的随机选取

import random,string
import uuid
chars = string.ascii_letters +string.digits
print(chars)
s = "".join(random.choice(chars) for i in range(10))
ge = "".join(random.sample(chars,10))  #随机十位
print(s+"           "+ge)

再通过嵌套函数的方式进行激活码的编写

import random,string
import uuid
chars = string.ascii_letters +string.digits
print(chars)
s = "".join(random.choice(chars) for i in range(10))
ge = "".join(random.sample(chars,10))  #随机十位
print(s+"           "+ge)

def generate(n,many):
    def getCode(n):
        return "".join(random.sample(chars, n))
    gene = [getCode(n) for i in range(many)]    #many个
    return  gene

def wri(n,many,where):
    count = 1
    for i in generate(n,many):
        with open(where,"a") as boom:
            boom.write(str(count).rjust(3)+"   "+i+"
")
        count += 1

if __name__ == '__main__':
    wri(20,200,"output.txt")