python菜鸟教程-画矩形_python tkinter画矩形

58画图，学用rectangle画方形

from tkinter import *
root = Tk()
root.title('Canvas')
canvas = Canvas(root,width = 400,height = 400, bg = 'yellow')
x0 = 263
y0 = 263
y1 = 275
x1 = 275
for i in range(19):
    canvas.create_rectangle(x0,y0,x1,y1)
    x0 -= 5
    y0 -= 5
    x1 += 5
    y1 += 5
 
canvas.pack()
root.mainloop()

从里到外画图的，x0 =y0 ,x1 = y1。

#!/usr/bin/python
# -*- coding: UTF-8 -*-
 
if __name__ == '__main__':
    from tkinter import *
 
    canvas = Canvas(width=300, height=300, bg='green')
    canvas.pack(expand=YES, fill=BOTH)
    x0 = 150
    y0 = 100
    canvas.create_oval(x0 - 10, y0 - 10, x0 + 10, y0 + 10)
    canvas.create_oval(x0 - 20, y0 - 20, x0 + 20, y0 + 20)
    canvas.create_oval(x0 - 50, y0 - 50, x0 + 50, y0 + 50)
    import math
 
    B = 0.809
    for i in range(16):
        a = 2 * math.pi / 16 * i
        x = math.ceil(x0 + 48 * math.cos(a))
        y = math.ceil(y0 + 48 * math.sin(a) * B)
        canvas.create_line(x0, y0, x, y, fill='red')
    canvas.create_oval(x0 - 60, y0 - 60, x0 + 60, y0 + 60)
 
    for k in range(501):
        for i in range(17):
            a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k
            x = math.ceil(x0 + 48 * math.cos(a))
            y = math.ceil(y0 + 48 + math.sin(a) * B)
            canvas.create_line(x0, y0, x, y, fill='red')
        for j in range(51):
            a = (2 * math.pi / 16) * i + (2 * math.pi / 180) * k - 1
            x = math.ceil(x0 + 48 * math.cos(a))
            y = math.ceil(y0 + 48 * math.sin(a) * B)
            canvas.create_line(x0, y0, x, y, fill='red')
    mainloop()