用matplotlib写基于Python画团旗的左上角有一个黄色的圆，圆内有一个五角星，圆外有四个小五角星

为了在Python中使用matplotlib绘制描述的图案，你可以分几个步骤来实现这个图形。首先安装matplotlib库，如果你还没有安装，可以使用pip来安装：

pip install matplotlib

接下来，我们可以利用`matplotlib.patches`模块创建各种形状并设置颜色。以下是一个示例代码，展示如何绘制一个带有黄色圆圈和内部五角星以及外围的小五角星的中国国旗样式的图：

import numpy as np
import matplotlib.pyplot as plt
from matplotlib.path import Path
from matplotlib.patches import RegularPolygon, Circle

# 设置绘图背景和尺寸
fig, ax = plt.subplots(figsize=(5, 3), facecolor='white')

# 黄色圆和内部五角星
circle_radius = 0.25
star_radius = 0.1
circle_color = 'yellow'
fill_color = 'none'

# 圆形部分
circle_path = Circle((0.4, 0.5), circle_radius)
circle_patch = plt.Pathpatch(circle_path)
ax.add_patch(circle_patch)

# 五角星路径和填充
pentagon_vertices = [(0.4 + star_radius * np.cos(t), 0.5 + star_radius * np.sin(t))
                     for t in np.linspace(0, 2 * np.pi, 5, endpoint=False)]
pentagon_path = Path(pentagon_vertices, closed=True)
star_patch = plt.PathPatch(pentagon_path, facecolor=fill_color, edgecolor=circle_color)
ax.add_patch(star_patch)

# 四个小五角星
small_star_radius = 0.075
x_positions = [0.35, 0.65, 0.75, 0.85]
y_position = 0.55
for x_pos in x_positions:
    small_pentagon_vertices = [(x_pos + small_star_radius * np.cos(t), y_position + small_star_radius * np.sin(t))
                              for t in np.linspace(0, 2 * np.pi, 5, endpoint=False)]
    small_pentagon_path = Path(small_pentagon_vertices, closed=True)
    small_star_patch = plt.PathPatch(small_pentagon_path, facecolor='white', edgecolor='black')
    ax.add_patch(small_star_patch)

# 调整边界和轴范围
ax.set_xlim(0, 1)
ax.set_ylim(0, 1)
ax.set_axis_off()

plt.show()

运行此代码后，你会看到一个左侧上方有黄色圆圈和五角星、其余周围有四个小五角星的图形。