python经典百题之画圆形多种解决办法

import matplotlib.pyplot as plt

# 圆心坐标和半径
x, y = 3, 3
radius = 2

# 创建绘图对象
fig, ax = plt.subplots()

# 绘制圆形
circle = plt.Circle((x, y), radius, fill=False)
ax.add_artist(circle)

# 设置图形属性
ax.set_aspect('equal', adjustable='datalim')
ax.set_xlim(0, 6)
ax.set_ylim(0, 6)
ax.set_xlabel('X Axis')
ax.set_ylabel('Y Axis')
ax.set_title('Plotting a Circle using matplotlib')
ax.grid(True)

# 显示图形
plt.show()

import turtle

# 圆心坐标和半径
x, y = 0, 0
radius = 100

# 创建Turtle对象
t = turtle.Turtle()

# 移动到圆形起始点
t.penup()
t.goto(x, y - radius)
t.pendown()

# 绘制圆形
t.circle(radius)

# 隐藏turtle
t.hideturtle()

# 显示绘图窗口
turtle.done()

from PIL import Image, ImageDraw

# 圆心坐标和半径
x, y = 100, 100
radius = 50

# 创建空白图像
image_width, image_height = 200, 200
image = Image.new('RGB', (image_width, image_height), 'white')

# 创建绘图对象
draw = ImageDraw.Draw(image)

# 绘制圆形
draw.ellipse((x - radius, y - radius, x + radius, y + radius), outline='black')

# 保存图像或显示图像
image.save('circle.png')
image.show()