第一章:文件I/O核心概念与Python基础 在计算机科学中,文件是存储在持久性存储介质(如硬盘、SSD、U盘等)上的数据集合。这些数据可以是文本、图像、音频、视频、程序代码,或者任何其他数字信息。文件I/O(Input/Output,输入/输出)操作是指程序与这些文件之间进行数据交换的过程,即读取文件内容到内存,或将内存中的数据写入
``` # Python script to rename multiple files in a directory import os def rename_files(directory_path, old_name, new_name): for filename in os.listdir(directory_path): if old_name in filename: new_filename = filename.replace(old_name, new_name) os.rename(os.path.join(directory_path...
``` # Python script to download images in bulk from a website import requests def download_images(url, save_directory): response = requests.get(url) if response.status_code == 200: images = response.json() # Assuming the API returns a JSON array of image URLs for index, image_url in...
os.path.abspath(file_path))print("File exists: ", os.path.exists(file_path))print("Parent directory: ", os.path.dirname(file_path))print("Parent directory: {} | File name: {}".format(
如果未安装 Python,安装 Python 的最简单方法是使用发行版的默认包管理器,如apt-get,yum等。通过在终端中输入以下命令来安装 Python: 对于Debian / Ubuntu Linux / Kali Linux 用户,请使用以下命令: $ sudo apt-get install python2 对于Red Hat / RHEL / CentOS Linux 用户,请使用以下命令: ...
```# Python script to download images in bulk from a websiteimport requestsdef download_images(url, save_directory):response = requests.get(url)if response.status_code == 200:images = response.json() # Assuming the API returns...
Pyenv provides a simple way to extend and customize its functionality with plugins -- as simple as creating a plugin directory and dropping a shell script on a certain subpath of it with whatever extra logic you need to be run at certain moments....
importarcpyimportosimportsys# Get the pathname to this script, then strip off the# script file name to yield the containing folder#scriptPath = sys.path[0] thisFolder = os.path.dirname(scriptPath)# Construct paths to ../ToolData/SanFrancisco.gdb/Streets and# ../ToolData/Warehouse.lyr#tool...
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ampy --port COM10 run script.py 这会在MicroPython设备上执行指定的脚本。 5. 删除文件: ampy --port COM10 rm /remote/path/file.py 这会删除MicroPython设备上的指定文件。 6. 创建目录: ampy --port COM10 mkdir /remote/path/new_directory ...