Python代码自动提取Win10内置的锁屏壁纸

自从用了 Win10，当开机的时候时不时会被惊艳到，有些推荐的背景图片真的很好看，比如下面这种：

1. 手动找到现有的方法

然后就开始在网上找方法，怎么下载这些图片。然后的确有方法，就是去到一个神不知鬼不觉的文件目录：C:\Users\用户名\AppData\Local\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\Assets 然后看到一堆什么乱七八糟的文件，就是这些图片存在的地方。

这些壁纸应该都是 Win10 从微软服务器下载的，所以不同人的电脑壁纸不一样

这些文件都默认没有后缀名，然后我们把上面的文件增加 .jpg 的后缀才可以看到图片的庐山真面目，这里当然可以手动增加后缀名；

也可以把上诉文件复制到另一个位置，比如 E 盘的 Wallpaper 目录下，然后用 cmd 的批量重命名工具，输入以下命令:

ren E:\Wallpaper\* *.jpg

然后就能正确查看这些图片了。可以=看到图片有横版和竖版的，分别为电脑端和手机端：

你会看到，一般每个画面有两张壁纸，一张为 1920 * 1080 分辨率的横屏桌面壁纸，一张为 1080 * 1920 分辨率的竖屏手机桌面壁纸。

现在你就可以把这些图片用作其他电脑或手机的桌面壁纸了。

2. 使用 WIN + R 打开运行的方法

使用快捷键 WIN + R 打开如下的运行界面：

输入如下的值，快速打开我们的文件夹：

%localappdata%\Packages\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\LocalState\Assets

把我们的文章复制出来，更改文件后缀，比如我在此处加上 .png：

3. Python 脚本自动提取

作为程序员，怎么能自己手动一个个该文件后缀呢，不能忍受，所以我们利用 Python 这个脚本语言来进行自动化处理。

A Windows 10 PC
Python 3x
PIL Module For Python 3x

我们需要读取当前的用户名

# Set Environment Variables
username = os.environ['USERNAME']

拼装文件路径:

# All file urls
file_urls = {
"wall_src": "C:\\Users\\" + username
+ "\\AppData\\Local\\Packages\\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\\"
+ "LocalState\\Assets\\",
"wall_dst": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\",
"wall_mobile": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\mobile\\",
"wall_desktop": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\desktop\\"
}

复制出文件：

# A method to import the wallpapers from src folder(dir_src)
@staticmethod
def copy_wallpapers():
w = Wallpaper
w.time_gap("Copying Wallpapers")
# Copy All Wallpapers From Src Folder To Dest Folder
for filename in os.listdir(w.file_urls["wall_src"]):
shutil.copy(w.file_urls["wall_src"] + filename, w.file_urls["wall_dst"])

添加文件后缀：

# A method to Change all the Extensions
@staticmethod
def change_ext():
w = Wallpaper
w.time_gap("Changing Extensions")
# Look into all the files in the executing folder and change extension
for filename in os.listdir(w.file_urls["wall_dst"]):
base_file, ext = os.path.splitext(filename)
if ext == "":
if not os.path.isdir(w.file_urls["wall_dst"] + filename):
os.rename(w.file_urls["wall_dst"] + filename,
w.file_urls["wall_dst"] + filename + ".jpg")

完整代码如下：

import os
import shutil
import time
from PIL import Image

class Wallpaper:
# Set Environment Variables
username = os.environ['USERNAME']

# All file urls
file_urls = {
"wall_src": "C:\\Users\\" + username
+ "\\AppData\\Local\\Packages\\Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy\\"
+ "LocalState\\Assets\\",
"wall_dst": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\",
"wall_mobile": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\mobile\\",
"wall_desktop": os.path.dirname(os.path.abspath(__file__)) + "\\Wallpapers\\desktop\\"
}
msg = '''
DDDDD OOOOO NN N EEEEEEE
D D O O N N N E
D D O O N N N E
D D O O N N N EEEE
D D O O N N N E
D D O O N N N E
DDDDD OOOOO N NN EEEEEEE
'''

# A method to showcase time effect
@staticmethod
def time_gap(string):
print(string, end='')
time.sleep(1)
print(".", end='')
time.sleep(1)
print(".")

# A method to import the wallpapers from src folder(dir_src)
@staticmethod
def copy_wallpapers():
w = Wallpaper
w.time_gap("Copying Wallpapers")
# Copy All Wallpapers From Src Folder To Dest Folder
for filename in os.listdir(w.file_urls["wall_src"]):
shutil.copy(w.file_urls["wall_src"] + filename, w.file_urls["wall_dst"])

# A method to Change all the Extensions
@staticmethod
def change_ext():
w = Wallpaper
w.time_gap("Changing Extensions")
# Look into all the files in the executing folder and change extension
for filename in os.listdir(w.file_urls["wall_dst"]):
base_file, ext = os.path.splitext(filename)
if ext == "":
if not os.path.isdir(w.file_urls["wall_dst"] + filename):
os.rename(w.file_urls["wall_dst"] + filename,
w.file_urls["wall_dst"] + filename + ".jpg")

# Remove all files Not having Wallpaper Resolution
@staticmethod
def extract_wall():
w = Wallpaper
w.time_gap("Extracting Wallpapers")
for filename in os.listdir(w.file_urls["wall_dst"]):
base_file, ext = os.path.splitext(filename)
if ext == ".jpg":
try:
im = Image.open(w.file_urls["wall_dst"] + filename)
except IOError:
print("This isn't a picture.", filename)
if list(im.size)[0] != 1920 and list(im.size)[0] != 1080:
im.close()
os.remove(w.file_urls["wall_dst"] + filename)
else:
im.close()
# Arrange the wallpapers into the corresponding folders
@staticmethod
def arr_desk_wallpapers():
w = Wallpaper
w.time_gap("Arranging Desktop wallpapers")
for filename in os.listdir(w.file_urls["wall_dst"]):
base_file, ext = os.path.splitext(filename)
if ext == ".jpg":
try:
im = Image.open(w.file_urls["wall_dst"] + filename)

if list(im.size)[0] == 1920:
im.close()
os.rename(w.file_urls["wall_dst"] + filename,
w.file_urls["wall_desktop"] + filename)
elif list(im.size)[0] == 1080:
im.close()
os.rename(w.file_urls["wall_dst"] + filename,
w.file_urls["wall_mobile"] + filename)
else:
im.close()
except FileExistsError:
print("File Already Exists!")
os.remove(w.file_urls["wall_dst"] + filename)

@staticmethod
def exec_all():
w = Wallpaper
w.copy_wallpapers()
w.change_ext()
w.extract_wall()
w.arr_desk_wallpapers()
print(w.msg)
time.sleep(3)

wall = Wallpaper()
wall.exec_all()

然后直接在控制台 cmd 下，直接输入 python warllpaper_extract.py，但可能会发生如下错误：