Add library exercises

python-ofensivo/08_librerias/08_tkinter_06_canvas.py

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+#!/usr/bin/env python3
+"""
+Librería tkinter - Canvas() Widget
+
+"""
+
+import tkinter as tk
+
+root = tk.Tk()
+root.geometry("300x300")
+root.title("Canvas() Widget")
+
+# Crear un Canvas
+canvas = tk.Canvas(root, width=250, height=250, bg="white")
+canvas.pack(pady=20)
+
+oval = canvas.create_oval(10, 10, 100, 100, fill="red")
+
+rect = canvas.create_rectangle(150, 100, 240, 10, fill="blue")
+
+line = canvas.create_line(10, 200, 100, 220, width=3, fill="green")
+
+root.mainloop()