在Windows上使用命令行窗口查看所安装的python版本

python --version

2.2 Visual Studio Code编译

Visual Studio Code是一款由微软开发且跨平台的免费源代码编辑器。该软件以扩展的方式支持语法高亮、代码自动补全、代码重构功能，并且内置了命令行工具和Git 版本控制系统。

3.制作一个绘图板

3.1 代码构思

使用tkinter模块，利用canvas控件进行绘制，然后使用画布控件，获取鼠标按键、移动、释放的操作。

3.2 代码实例

import tkinter as tk
from tkinter import colorchooser, filedialog, messagebox
from PIL import Image, ImageTk, ImageDraw
import osclass SimplePaint:def __init__(self, root):# 初始化self.root = rootself.root.title("Simple Paint-简单绘图板-Zucker")self.root.geometry("800x600")# 创建画布self.canvas = tk.Canvas(root, bg="white", width=800, height=600)self.canvas.pack(fill=tk.BOTH, expand=True)# 初始化变量self.old_x = Noneself.old_y = Noneself.color = "black"self.eraser_on = False# 设置菜单和绑定事件self.setup_menu()self.setup_bindings()def setup_menu(self):# 设置菜单menu = tk.Menu(self.root)self.root.config(menu=menu)# 文件菜单file_menu = tk.Menu(menu, tearoff=0)menu.add_cascade(label="File", menu=file_menu)file_menu.add_command(label="Open", command=self.open_image)file_menu.add_command(label="Save", command=self.save_image)file_menu.add_separator()file_menu.add_command(label="Exit", command=self.root.quit)# 编辑菜单edit_menu = tk.Menu(menu, tearoff=0)menu.add_cascade(label="Edit", menu=edit_menu)edit_menu.add_command(label="Clear All", command=self.clear_canvas)edit_menu.add_command(label="Erase", command=self.use_eraser)edit_menu.add_command(label="Insert Text", command=self.insert_text)edit_menu.add_command(label="Insert Image", command=self.insert_image)# 形状菜单shape_menu = tk.Menu(menu, tearoff=0)menu.add_cascade(label="Shapes", menu=shape_menu)shape_menu.add_command(label="Draw Line", command=self.draw_line)shape_menu.add_command(label="Draw Circle", command=self.draw_circle)# 颜色菜单color_menu = tk.Menu(menu, tearoff=0)menu.add_cascade(label="Color", menu=color_menu)color_menu.add_command(label="Choose Color", command=self.choose_color)def setup_bindings(self):# 绑定画布事件self.canvas.bind("<ButtonPress-1>", self.on_button_press)self.canvas.bind("<B1-Motion>", self.on_paint)self.canvas.bind("<ButtonRelease-1>", self.on_button_release)def choose_color(self):# 选择颜色self.eraser_on = Falseself.color = colorchooser.askcolor(color=self.color)[1]def clear_canvas(self):# 清除画布self.canvas.delete("all")def use_eraser(self):# 启用橡皮擦self.eraser_on = Truedef insert_text(self):# 插入文本self.eraser_on = Falsetext = tk.simpledialog.askstring("Input", "Enter text to insert:")if text:self.canvas.create_text(400, 300, text=text, font=("Arial", 20), fill=self.color)def insert_image(self):# 插入图片self.eraser_on = Falseimage_path = filedialog.askopenfilename()if image_path:img = Image.open(image_path)img = img.resize((200, 200), Image.ANTIALIAS)self.img = ImageTk.PhotoImage(img)self.canvas.create_image(400, 300, image=self.img, anchor=tk.CENTER)def draw_line(self):# 画线self.eraser_on = Falseself.draw_shape = "line"def draw_circle(self):# 画圆self.eraser_on = Falseself.draw_shape = "circle"def open_image(self):# 打开图片image_path = filedialog.askopenfilename()if image_path:img = Image.open(image_path)self.img = ImageTk.PhotoImage(img)self.canvas.create_image(0, 0, image=self.img, anchor=tk.NW)def save_image(self):# 保存图片file_path = filedialog.asksaveasfilename(defaultextension=".png", filetypes=[("PNG files", "*.png"), ("All files", "*.*")])if file_path:# 保存画布内容为 PNG 图片self.canvas.postscript(file=file_path + '.eps')img = Image.open(file_path + '.eps')img.save(file_path, "png")os.remove(file_path + '.eps')def on_button_press(self, event):# 鼠标按下事件处理self.old_x = event.xself.old_y = event.ydef on_paint(self, event):# 鼠标移动事件处理paint_color = self.color if not self.eraser_on else "white"if self.old_x and self.old_y:self.canvas.create_line(self.old_x, self.old_y, event.x, event.y, fill=paint_color, width=5, capstyle=tk.ROUND, smooth=tk.TRUE)self.old_x = event.xself.old_y = event.ydef on_button_release(self, event):# 鼠标释放事件处理self.old_x = Noneself.old_y = Noneif __name__ == "__main__":root = tk.Tk()app = SimplePaint(root)root.mainloop()

3.3 运行结果

4.总结

通过定义多个函数来执行命令，并进行可视化操作，你也试试吧！