代码8

"""canvas画布"""
from tkinter import *
import random

class Application(Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.create_widgets()

    def create_widgets(self):
        # 创建Canvas组件，设置宽度和高度
        self.canvas = Canvas(self, width=400, height=300, bg="white")
        self.canvas.pack()

        # 在Canvas上绘制随机颜色的矩形
        for _ in range(10):
            # 随机生成矩形的坐标和大小
            x1, y1 = random.randint(50, 350), random.randint(50, 250)
            x2, y2 = x1 + random.randint(20, 50), y1 + random.randint(20, 50)
            # 随机生成填充色
            color = "#{:06x}".format(random.randint(0, 0xFFFFFF))
            # 使用create_rectangle方法在Canvas上绘制矩形
            self.canvas.create_rectangle(x1, y1, x2, y2, fill=color)

# 创建主窗口
root = Tk()
root.geometry("400x300+300+300")  # 设置窗口大小和位置
root.title("Canvas画布")  # 设置窗口标题

# 创建Application实例并关联到主窗口
app = Application(master=root)

# 开启主事件循环
root.mainloop()