如何将matplotlib.pypot图形保存为具有所需像素大小的图像？

import matplotlib.pyplot as plt

plt.plot(x, y)  # 示例绘制一条曲线

plt.figure(figsize=(width, height), dpi=dpi)

plt.savefig('output.png', dpi=dpi)

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]

plt.plot(x, y)

width = 4
height = 3
dpi = 300

plt.figure(figsize=(width, height), dpi=dpi)
plt.savefig('output.png', dpi=dpi)