Python【Show Me The Code】小功能

1、改改注册表，使游戏全屏：

　　

import win32api
import win32con

ChildKey = "SYSTEM\ControlSet001\Control\GraphicsDrivers\Configuration\CMN14760_33_07DB_14^CD1210F191996046BD4FAF7270B5C9BB\00\00"

handle = win32api.RegOpenKey(win32con.HKEY_LOCAL_MACHINE,ChildKey,0,win32con.KEY_ALL_ACCESS)

getnum = win32api.RegQueryValueEx(handle,'Scaling')

win32api.RegSetValueEx(handle,'Scaling',0,win32con.REG_DWORD,0x3)

win32api.RegCloseKey(handle)

2、往图片右上角添加数字，犹如qq消息提示一样:

from PIL import Image
from PIL import ImageFont
from PIL import ImageDraw

class Draw:
    def __init__(self,name):
        self.name = name

    def open(self):
        try:
            self.pic = Image.open(self.name)
        except:
            print("文件无法打开")
            exit(1)

    def draw_pic(self,num):
        self.tar_size = max(self.pic.size[0],self.pic.size[1])/5
        self.num = num
        self.tar_draw = str(self.num) if self.num < 100 else '99+'
        self.font = ImageFont.truetype("Arial.ttf",self.tar_size)
        self.px = self.pic.size[0] - self.font.getsize(self.tar_draw)[0]

        self.opened = ImageDraw.Draw(self.pic)
        self.opened.text((self.px,0),self.tar_draw,(255,0,0),self.font)
        self.pic.save("New.jpg")
        return True


filename = raw_input("输入文件名:")
obj = Draw(filename)
obj.open()
num = input('输入数量:')
obj.draw_pic(num)

3、爬虫：

import urllib.request
import os
import re

def url_open(url):
    req = urllib.request.Request(url)
    req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36')
    response = urllib.request.urlopen(url)
    html = response.read()
    return html

def get_page(url):

    try:
            #print("正在尝试utf-8解码")
            html = url_open(url).decode("utf-8")
    except UnicodeDecodeError:
            #print("解码失败，尝试GBK解码")
            html = url_open(url).decode('GBK')

    rep = r'forum.php?mod=viewthread&tid=([0-9]{5})'
    list1 = list(set(re.findall(rep,html)))
    #print(listone)
    print("函数get_page执行完毕。。。正在返回")
    return list1


def page_open(list1):
    urlopen_page = 'http://bbs.fishc.com/forum.php?mod=viewthread&tid='
    os.mkdir('YuC')
    os.chdir('YuC')
    for each in list1:
        page_add = urlopen_page + each
        print("正在下载网址:" ,page_add)
        download_page(page_add)




def download_page(page_add):

    get = url_open(page_add)
    filename = get_filename(get)
    

    #f1 = re.search(r'id="thread_subject">(.*)</span>',get)
    #filename = str(f1[0])
    print("创建文件当中.........")
    with open(filename,'wb') as f:
        f.write(get)
    print("文件创建完毕！")


def get_filename(get):
    try:
            #print("正在尝试utf-8解码")
            get = get.decode("utf-8")
    except UnicodeDecodeError:
            #print("解码失败，尝试GBK解码")
            get = get.decode('GBK')
    f1 = re.findall(r'id="thread_subject">(.*)</span>',get)
    filename = str(f1[0]) +'.html'
    return filename




if __name__ == '__main__':
    
    url = 'http://bbs.fishc.com/forum.php?mod=forumdisplay&fid=255&typeid=420&typeid=420&filter=typeid&page='
    for i in range(4):
        url = url + str(i)
        list1 = get_page(url)
        page_open(list1)