Python Tkinter 画布（Canvas） Python GUI编程Python Tkinter 画布（Canvas）组件和html5 中的画布一样，都是用来绘图的。您可以将图形，文本，小部件或框架放置在 ... ... <看更多>
「tkinter canvas」的推薦目錄：
tkinter canvas 在 [Python] Tkinter-畫布(Canvas) - K_程式人- 痞客邦 的相關結果
基本設置如下: import tkinter as tk root = tk.Tk() can = tk.Canvas(root, bg = 'red').pack() root.mainlo. ... <看更多>
tkinter canvas 在 Python - Tkinter Canvas - Tutorialspoint 的相關結果
Python - Tkinter Canvas, The Canvas is a rectangular area intended for drawing pictures or other complex layouts. You can place graphics, text, ... ... <看更多>
tkinter canvas 在 Python可以這樣玩(9)：Canvas繪圖功能 的相關結果
下圖是一個繪圖功能的測試，接下來的課程我們要用 Python 的 Canvas 來達成這樣的功能。 如同前面的元件一樣，Canvas 是一個畫布元件，為 Tkinter ... ... <看更多>
tkinter canvas 在 python | tkinter（四）Canvas用法_墨色幽灵的博客 - CSDN 的相關結果
python |tkinter的Canvas用法canvas是画布的意思，so，他可以画图像操作一、简单的画图像操作1、画线与矩形create_line和create_rectanglefrom ... ... <看更多>
tkinter canvas 在 GUI Programming with Python: Canvas Widget 的相關結果
The Canvas widget supplies graphics facilities for Tkinter. Among these graphical objects are lines, circles, images, and even other widgets. ... <看更多>
tkinter canvas 在 TkDocs Tutorial - Canvas 的相關結果
Tk's canvas is an incredibly powerful and flexible widget and truly one of Tk's highlights. It is suitable for a wide range of uses, including drawing or ... ... <看更多>
tkinter canvas 在 Python Tkinter - Canvas Widget - GeeksforGeeks 的相關結果
Python Tkinter – Canvas Widget ... Tkinter is a GUI toolkit used in python to make user-friendly GUIs.Tkinter is the most commonly used and the ... ... <看更多>
tkinter canvas 在 Python Tkinter.Canvas方法代碼示例- 純淨天空 的相關結果
需要導入模塊: import Tkinter [as 別名] # 或者: from Tkinter import Canvas [as ... the display tkinter canvas to hold the images taken by the pi camera. ... <看更多>
tkinter canvas 在 Tkinter canvas - Python Tutorial 的相關結果
A tkinter canvas can be used to draw in a window. Use this widget to draw graphs or plots. You can even use it to create graphical editors. ... <看更多>
tkinter canvas 在 Tkinter save canvas and load - Stack Overflow 的相關結果
Ok, so I made a little example of how that might be done (will step through the code a bit): import json from tkinter import Tk, Canvas ... ... <看更多>
tkinter canvas 在 Drawing in Tkinter - lines, shapes, colours, text, image - ZetCode 的相關結果
Drawing in Tkinter shows how to do simple drawing. We draw lines, shapes, text, and image on the canvas widget. ... <看更多>
tkinter canvas 在 Tkinter tutorial Part 1 - Making a Tkinter Canvas - AskPython 的相關結果
Step 1: Create the application and the master object handle. Before we can create our canvas, we need to instantiate the Python Tkinter object. The default ... ... <看更多>
tkinter canvas 在 Python Tkinter Canvas - Javatpoint 的相關結果
The canvas widget is used to add the structured graphics to the python application. It is used to draw the graph and plots to the python application. The syntax ... ... <看更多>
tkinter canvas 在 Tkinter.Canvas - Huihoo 的相關結果
Add tag NEWTAG to all items with TAGORID. bbox(self, *args) Return a tuple of X1, ... ... <看更多>
tkinter canvas 在 Drawing Shapes With The Tkinter Canvas Element In Python 的相關結果
The Canvas element that comes with Tkinter is quite versatile. Out of the box you can draw simple basic shapes like squares and circles, ... ... <看更多>
tkinter canvas 在 Tkinter Canvas Text | Delft Stack 的相關結果
The Tkinter package is the standard GUI programming library in Python. The Canvas is a rectangular area used for writing and drawing in the ... ... <看更多>
tkinter canvas 在 Creating Snake Using Tkinter's Canvas Widget (Part 2) - The ... 的相關結果
In this post we finish off our Snake game using Tkinter's Canvas widget. Learn how to move objects on the Canvas, delete them, or add more. ... <看更多>
tkinter canvas 在 Various Examples of Python Tkinter Canvas - eduCBA 的相關結果
Guide to Python Tkinter Canvas. Here we discuss the basic concept along with different examples and code implementation in detail. ... <看更多>
tkinter canvas 在 Python Tkinter Canvas Tutorial 的相關結果
Python Tkinter Canvas Tutorial · Like other widgets, the canvas is also a widget that is used for multiple uses. · Canvas is a drawing widget and ... ... <看更多>
tkinter canvas 在 Python Tkinter Canvas 畫圖型 - 程王敗code 的相關結果
from Tkinter import * master = Tk() w = Canvas(master, width=200, height=100) #宣告長200高100區域w.pack() 要畫一條直線／斜線 ... <看更多>
tkinter canvas 在 Canvas - tkinter - Python documentation - Kite 的相關結果
Canvas - 245 members - Canvas widget to display graphical elements like lines or text. ... <看更多>
tkinter canvas 在 GUI的最終選擇Tkinter(六)：Canvas元件- IT閱讀 的相關結果
在Canvas元件上繪製物件，可以用creat_xxx()方法（xxxvia表示物件型別，例如直線line，矩形rectangle和文字text等）。 1 from tkinter import * 2 3 4 ... ... <看更多>
tkinter canvas 在 Python Tkinter Canvas - CodersLegacy 的相關結果
The Canvas widget is one of the more unique and advanced widgets Tkinter has to offer in Python. It's use of similar to that of a drawing board, ... ... <看更多>
tkinter canvas 在 Tkinter Canvas Walkthrough (Part 3) - andrew.cmu.ed 的相關結果
Tk's canvas is an incredibly powerful and flexible widget, and truly one of Tk's highlights. It is suitable for a wide range of uses, including drawing or ... ... <看更多>
tkinter canvas 在 How To Use Canvas In Tkinter In Python - C# Corner 的相關結果
The Canvas keyword is used to draw and do layout in a Python application. The Canvas is a square area intended for pictures or complex ... ... <看更多>
tkinter canvas 在 Tkinter 組件詳解（十二）：Canvas - 台部落 的相關結果
Canvas （畫布）組件爲Tkinter 的圖形繪製提供了基礎。Canvas 是一個高度靈活的組件，你可以用它繪製圖形和圖表，創建圖形編輯器，並實現各種自定義的 ... ... <看更多>
tkinter canvas 在 如何顯示圖片在Canvas物件上，做一個簡易繪畫工具 的相關結果
圖像可以顯示在很多物件上，這裡我挑選一個常用案例是顯示在畫布canvas上，首先定義一個tk.Canvas物件: self.drawingpadcanvas = tk.Canvas(drawingpadPanel ... ... <看更多>
tkinter canvas 在 為應用程式設計圖形化介面，使用Python Tkinter 模組 - RS ... 的相關結果
類別, 介紹. Frame, 視窗。 Label, 文字標籤。 Button, 按鈕。 Canvas, 可以用來繪圖、文字等都可以，像我就會來拿放圖片。 Checkbutton, 核取按鈕。 ... <看更多>
tkinter canvas 在 Tk::Canvas - Create and manipulate Canvas widgets 的相關結果
Tk ::Canvas - Create and manipulate Canvas widgets ... Specifies a desired window width that the canvas widget should request from its geometry manager. ... <看更多>
tkinter canvas 在 How to I clear Tkinter Canvas using Python - Edureka 的相關結果
When I draw a shape using: canvas.create_rectangle(15, 15, 60, 60, color="blue") Does Tkinter ... the right way to do it? ... <看更多>
tkinter canvas 在 Python Tkinter Canvas Widget - Studytonight 的相關結果
This tutorial covers Tkinter canvas widget in Python covering its syntax, various options to configure tkinter canvas widget with code examples. ... <看更多>
tkinter canvas 在 The Canvas widget | Tkinter GUI Programming by Example 的相關結果
The Canvas widget is Tkinter's primary widget for displaying graphics. With a vast range of built-in functions for creating graphics manually, it is the ... ... <看更多>
tkinter canvas 在 【PYTHON】繪製後更改tkinter Canvas 物件 - 程式人生 的相關結果
我想在tkinter中建立一個由綠色和黑色正方形組成的2d地圖。每個方塊都有一個小文字 ... from Tkinter import * root = Tk() canvas = Canvas(root) canvas.pack() rect ... ... <看更多>
tkinter canvas 在 Tkinter.Canvas - Epydoc 的相關結果
Internal function. addtag_above(self, newtag, tagOrId) Add tag NEWTAG to all items above ... ... <看更多>
tkinter canvas 在 Creating The Python UI With Tkinter - The Canvas Widget - I ... 的相關結果
The most powerful of the Tkinter widgets is the canvas. You can use it to create general graphics and it can be used to create custom ... ... <看更多>
tkinter canvas 在 tkinter Graphics Reference - CS106A 的相關結果
The Canvas. The drawing model in Tk is that you have a canvas (much like a painting) where you are going to draw various shapes. The canvas ... ... <看更多>
tkinter canvas 在 Canvas 画布- 窗口视窗(Tkinter) | 莫烦Python 的相關結果
canvas = tk.Canvas(window, bg='blue', height=100, width=200). 2. canvas.pack(). 这里的参数和以往学过的部件一样，所以就不再一一解释。 ... <看更多>
tkinter canvas 在 Add Label to canvas - Tkinker « Python Tutorial - Java2s.com 的相關結果
from Tkinter import * canvas = Canvas(width=300, height=300, bg='white') canvas.pack(expand=YES, fill=BOTH) widget = Label(canvas, text='Spam', fg='white', ... ... <看更多>
tkinter canvas 在 Graphical User Interfaces with Tk — Python 3.10.1 ... 的相關結果
Tk /Tcl has long been an integral part of Python. It provides a robust and platform independent windowing toolkit, that is available to Python programmers ... ... <看更多>
tkinter canvas 在 Python tkinter Canvas画布完全攻略 的相關結果
Tkinter 提供了Canvas 组件来实现绘图。程序既可在Canvas 中绘制直线、矩形、椭圆等各种几何图形，也可绘制图片、文字、UI 组件（如Button）等。 ... <看更多>
tkinter canvas 在 python canvas tkinter and opensesame - Recent Discussions 的相關結果
I've worked with tkinter before and I can't quite figure out how to work with the canvas() in open sesame.. I do not understand the difference ... ... <看更多>
tkinter canvas 在 Saving a Tkinter Canvas Drawing (Python) | DaniWeb 的相關結果
The Tkinter GUI toolkit's canvas object is very nice for all sorts of drawings and plotting. ... ... <看更多>
tkinter canvas 在 Tkinter canvas - python-commandments.org 的相關結果
The tkinter canvas component provides the basis for Tkinter's graphical rendering. Highly flexible component that you can use to draw graphs and charts, ... ... <看更多>
tkinter canvas 在 How to Draw on an Image or Canvas in Python Using The ... 的相關結果
If you want to draw something on an image or a canvas in Tkinter. There are some steps that you should do first. Follow me in this blog step by step to see how ... ... <看更多>
tkinter canvas 在 Tk Canvas Widget - Tk教學 - 極客書 的相關結果
Canvas 用於提供畫圖區。Canvas 組件的語法如下所示。 canvas canvasName options 選項可用於canvas widget的選項列於下表中。 SN 語法Description 1 -background ... ... <看更多>
tkinter canvas 在 tkinter Tutorial => Scrolling a Canvas widget horizontally and... 的相關結果
The principle is essentially the same as for the Text widget, but a Grid layout is used to put the scrollbars around the widget. canvas = tk.Canvas(parent ... ... <看更多>
tkinter canvas 在 Canvas Element - GUI-Programmierung mit Python 的相關結果
Bei einem Canvas handelt es sich um ein grafisches Element, das ein Bestandteil von HTML5 ist und mit HTML5 eingeführt worden ist. Mit Canvas ist es möglich ... ... <看更多>
tkinter canvas 在 Change image in tkinter canvas - Pretag 的相關結果
Moreover, we can display an image file using the create_image() constructor. Example. #Import the required library from tkinter import * from ... ... <看更多>
tkinter canvas 在 【Python】Tkinterのcanvasを使ってみる - Qiita 的相關結果
#!/usr/bin/env python # -*- coding: utf8 -*- import sys import Tkinter # # GUI設定# root = Tkinter.Tk() root.title(u"TkinterのCanvasを使って ... ... <看更多>
tkinter canvas 在 How To Create Canvas In Python TKinter - Codeloop 的相關結果
if you are interested in Python GUI Development, you can check the below links. The Canvas is a rectangular area intended for drawing pictures ... ... <看更多>
tkinter canvas 在 【python基础】 Tkinter小构件之canvas 画布- 天秤libra - 博客园 的相關結果
【python之tkinter画布】 本文代码来源于机械工业出版社的一本python书籍. 要画布就要使用tkinter的小构件，canvas(结构化的图形，用于绘制图形， ... ... <看更多>
tkinter canvas 在 Canvas in Tkinter - Python Tricks 的相關結果
The canvas widget in Tkinter is used to add graphics in the python application. We can draw different graphics and shapes. You can easily declare. ... <看更多>
tkinter canvas 在 How to Create Canvas Animation Using Tkinter - Quick ... 的相關結果
This article contains a step by step guide on building an animation using the python tkinter package. We will be using canvas object of the tkinter package ... ... <看更多>
tkinter canvas 在 Python Tkinter Canvas - Tutorial Kart 的相關結果
Python Tkinter Canvas Widget Tkinter Canvas Widget is a rectangular area that allows for drawing shapes, pictures or complex layouts. ... <看更多>
tkinter canvas 在 Tkinter time entry - Batu İthalat 的相關結果
Selection from Python GUI Programming with Tkinter [Book] tkinter; pillow >= 6. ... following: root = Tk() Now we can start creating the matplotlib canvas. ... <看更多>
tkinter canvas 在 python - 如何在tkinter Canvas 上绘制弧线？ - IT工具网 的相關結果
到目前为止，我得到了这个(我正在使用 tkinter 和 canvas 来绘制): from tkinter import Tk, Canvas, mainloop def circle(canvas, x, y, r, ... ... <看更多>
tkinter canvas 在 How do I update images on a Tkinter Canvas? - py4u 的相關結果
I'm trying to make a script which will enable me to dynamically update an image object and then post the updated image to a Tkinter Canvas widget. ... <看更多>
tkinter canvas 在 python的tkinter编程（十一）canvas画布的详解 - 腾讯云 的相關結果
相当于我们在窗口上面做了一个画布的组件，以后就可以在这个画布里面写东西了。 # 画一条直线， line= self.canvas.create_line(10,10,30,20,40,50). ... <看更多>
tkinter canvas 在 Moving a rectangle on the canvas in tkinter - python ... 的相關結果
Move a rectangle on the screen with tkinter and canvas using the move function and the bind method. It could be a start for a game. ... <看更多>
tkinter canvas 在 tkinter Canvas Scrollbar with Grid? | Newbedev 的相關結果
tkinter Canvas Scrollbar with Grid? The height of your scrollbar didn't match the buttons frame height because you did't tell it to stick North and South ... ... <看更多>
tkinter canvas 在 Python tkinter Canvas - Plus2net 的相關結果
Tkinter GUI Canvas adding items like text line arc oval rectangles and images. ... <看更多>
tkinter canvas 在 Tkinter canvas: freeform GUIs in Python - TechRepublic 的相關結果
If you need more freedom you can use the Canvas widget included in Tkinter, which gives you an area where you can draw custom shapes. ... <看更多>
tkinter canvas 在 Tkinter canvas size determination - Python - Bytes Developer ... 的相關結果
import Tkinter >>> c = Tkinter.Canvas() >>> c.create_oval(13, 51, 80, 130) 1 >>> c.pack() >>> print c.cget("width"). ... <看更多>
tkinter canvas 在 Canvas. Урок 9 курса "Tkinter. Программирование GUI на ... 的相關結果
В tkinter от класса Canvas создаются объекты-холсты, на которых можно "рисовать", размещая различные фигуры и объекты. Делается это с помощью вызовов ... ... <看更多>
tkinter canvas 在 PyDraw: a GUI drawing generator based on Tkinter and its ... 的相關結果
Keywords Python Tkinter PyDraw Canvas GUI design GUI generator. By-drawn concept. Jinwei Lin [email protected]. Aimin Zhou. ... <看更多>
tkinter canvas 在 在python tkinter中Canvas实现进度条显示的方法 - 脚本之家 的相關結果
今天小编就为大家分享一篇在python tkinter中Canvas实现进度条显示的方法，具有很好的参考价值，希望对大家有所帮助。一起跟随小编过来看看吧. ... <看更多>
tkinter canvas 在 Tkinter Canvas Items Demo - Py In My Eye 的相關結果
Tkinter Canvas Items Demo. The following code is based on the Tcl items.tcl demo. A canvas widget is created, a 3x3 grid is drawn and ... ... <看更多>
tkinter canvas 在 Change image in tkinter canvas - Code Helper 的相關結果
""" Change Image in Tkinter Canvas img2 = New Image object image_container = image holding container canvasxyz = name of the image container canvas ... ... <看更多>
tkinter canvas 在 Resizing a tkinter canvas to show the entire frame inside of it. 的相關結果
I need your help with tkinter. I need the canvas the frame is inside to expand to the size of that example text, instead of cutting it off ... ... <看更多>
tkinter canvas 在 Canvas - Canevas - Tkinter pour ISN 的相關結果
Un canevas est une zone rectangulaire destinée à contenir des dessins ou d'autres figures complexes. Vous pouvez y placer des graphiques, du texte, ... ... <看更多>
tkinter canvas 在 Dragon python code - Puerta del Sol Animazione 的相關結果
To activate the Smart mode, hold SHIFT while dragging items around on the canvas. E-DRAGON can analyse max 149 molecules and max 150 atoms per molecule. ... <看更多>
tkinter canvas 在 Learn how to use pack in Tkinter - three examples - ActiveState 的相關結果
Pack is the easiest Layout Manager to code with, in Tkinter. Learn how to use Pack () - commonly used in Python for GUI applications. ... <看更多>
tkinter canvas 在 tkinter Canvas - Tutor de Programación 的相關結果
El widget canvas en tkinter nos brinda una superficie sobre la que podemos dibujar distintas figuras, imágenes, texto, etc., para cada uno ... ... <看更多>
tkinter canvas 在 [Python] Use python's tkinter-canvas function to draw a ... 的相關結果
Tkinter module (Tk interface) is the interface of Python's standard Tk GUI toolkit;. Canvas (canvas) is a general-purpose component, usually ... ... <看更多>
tkinter canvas 在 How to get tkinter canvas to dynamically resize to window width? 的相關結果
I need to get a canvas in tkinter to set its width to the width of the window and then dynamically resize the canvas when the user makes... ... <看更多>
tkinter canvas 在 How to embed a Matplotlib graph to your Tkinter GUI - Python ... 的相關結果
First we are defining our figure, then adding a subplot. From there, we plot as usual some x coordinates and some y. Next, we add the canvas, which is what we ... ... <看更多>
tkinter canvas 在 Графика в Python: Tkinter и Canvas - OTUS 的相關結果
Canvas : рисуем цветные прямоугольники в Python ... Цвет — это объект, отображающий комбинацию трех цветов (красного, зеленого, синего — RGB). С ... ... <看更多>
tkinter canvas 在 poython tkinter canvas对象如何保存为一个图片格式的文件呢？ 的相關結果
Canvas 好像没有直接保存为图片文件的方法。 这两天我也在搞这个，觉得最简单的方法是直接截图。当然，用第三方的截图工具或者Windows的print screen 肯定不是题主想 ... ... <看更多>
tkinter canvas 在 Tkinter optionmenu design 的相關結果
You can control the dimensions of your Canvas by changing the width and height tkinter frame - Python Tutorial. Create a window. [2] Tkinter is included ... ... <看更多>
tkinter canvas 在 Create game board tkinter 的相關結果
Connect 4 Game import Tkinter screen = Tkinter. Mar 28, 2020 · In this section, we are going to understand the tkinter canvas Python GUI. ... <看更多>
tkinter canvas 在 在Tkinter的画布上显示OpenCV图像,tkinter,canvas - Python教程 的相關結果
和OpenCV没有直接的转换函数，这里另外引进了python常用的图像库PIL来间接的进行转换。 实现了在在tkinter的canvas上显示OpenCV图像。 ... <看更多>
tkinter canvas 在 semi-transparent-stipple-demo 的相關結果
But it's better than nothing... from Tkinter import * def redrawAll(canvas): canvas.delete(ALL) # draw a red rectangle on the left half ... ... <看更多>
tkinter canvas 在 how to create a circle in tkinter canvas Code Example 的相關結果
from tkinter import * root = Tk() myCanvas = Canvas(root) myCanvas.pack() def create_circle(x, y, r, canvasName): #center coordinates, ... ... <看更多>
tkinter canvas 在 【Python/tkinter】Canvas（キャンバス）の作成 的相關結果
ただ、Canvasを配置しただけの簡単なサンプルは以下のようになります。 (実行画面). python tkinter Canvas. （プログラム）. import tkinter as tk ... ... <看更多>
tkinter canvas 在 Python, TKinter, and GUI Canvas - Allegro.cc 的相關結果
A Canvas in TKinter is pretty dang cool. It's a dirty-rectangle stack of objects that all retain their "object" characteristics, as opposed to ... ... <看更多>
tkinter canvas 在 Correct way to draw a line in canvas tkinter ? - R4R.in 的相關結果
Question: Correct way to draw a line in canvas tkinter ? · 1.line() · 2.canvas.create_line() · 3.create_line(canvas) · 4.None of the above. Show Answer. ... <看更多>
tkinter canvas 在 Detecting and handling a win condition - O'Reilly Media 的相關結果
Selection from Python GUI Programming with Tkinter [Book] ... Collision detection between items is slightly awkward with the Tkinter Canvas widget. ... <看更多>
tkinter canvas 在 tkinter.Canvas.create_text() - Mon Python - Google Sites 的相關結果
tkinter.Canvas.create_text(). FICHES SYNTHÉTIQUES DU LANGAGE DE PROGRAMMATION PYTHON ILLUSTRÉES PAR L'EXEMPLE ... ... <看更多>
tkinter canvas 在 3D polyhedra with simple tk canvas - the Tcler's Wiki! 的相關結果
GS - This code displays 3d polyhedra in shaded or wireframe mode. It uses only the tk canvas. The illumination model is a simple flat shading model [L1 ]. ... <看更多>
tkinter canvas 在 Рисуем линии, прямоугольники, круг и текст в Tkinter [Урок ... 的相關結果
from tkinter import Tk, Canvas, Frame, BOTH, NW from PIL import Image, ImageTk class Example(Frame): def ... ... <看更多>
tkinter canvas 在 A simple paint application using tkinter in Python 3 - Discover ... 的相關結果
Tkinter canvas keep track of every elements is added to it and return an id of each element. You can store the id, to specify which element to delete. ... <看更多>
tkinter canvas 在 Tkinter text border - Jeferson de Souza – Web Designer 的相關結果
The Canvas widget supplies graphics facilities for Tkinter. Ask Question Asked today. transition-duration. Labels are widgets that contain text or images. ... <看更多>
tkinter canvas 在 [Python][Voice]Integrate a plot of matplotlib into tkinter GUI ... 的相關結果
canvas =FigureCanvasTkAgg(figure,win). canvas.get_tk_widget().pack(side=tk.RIGHT, fill=tk.Y, expand=1) #fill=tk.BOTH/X/Y. ... <看更多>
tkinter canvas 在 Le canevas — Documentation - Pascal Ortiz 的相關結果
Le widget Canvas¶ ... Tkinter dispose d'un widget canevas : c'est une surface permettant de dessiner des formes géométriques (rectangles, disques, du texte, etc) ... ... <看更多>
tkinter canvas 在 Hardcore Programming for Mechanical Engineers: Build ... 的相關結果
Hello Canvas This is a weird drawing Figure 10-9 : Text added to our Tkinter canvas Your final code should look like Listing 10-5 . canvas = from tkinter ... ... <看更多>
tkinter canvas 在 Python GUI Programming with Tkinter: Design and build ... 的相關結果
Canvas ( root, background='black', width=1024, height=768 ) canvas.pack() Creating a Canvas object is just like creating any other Tkinter widget. ... <看更多>
tkinter canvas 在 Python tkinter Canvas 用法與範例 的相關結果
本篇ShengYu 介紹Python tkinter Canvas 用法與範例，在Python tkinter 裡可以使用Canvas 來進行圖形的繪製，透過繪製一些基本的點、直線、矩形、圓型 ... ... <看更多>