What is Matplotlib's method of saving images?

The way Matplotlib saves images is to use the savefig() function. The savefig() function can save the content in the current drawing window as an image file, supporting a variety of common image formats, such as PNG, JPEG, SVG, etc.

The operating system for this tutorial: Windows 10 system, Python version 3.11.4, Dell G3 computer.

In Matplotlib, you can use the savefig() function to save images. The savefig() function can save the content in the current drawing window as an image file, supporting a variety of common image formats, such as PNG, JPEG, SVG, etc. Here is a sample code:

import matplotlib.pyplot as plt# 创建一个简单的折线图x = [1, 2, 3, 4, 5]
y = [2, 4, 6, 8, 10]
plt.plot(x, y)# 保存图像plt.savefig("plot.png")

In the above sample code, we first create a simple line chart, and then use the savefig() function to save the chart as a PNG image named "plot.png" document. You can modify the file name and file format as needed.

Please note that the savefig() function needs to be called before the show() function, because the show() function will display the image in the drawing window and block the execution of the program. If you call the savefig() function after calling the show() function, only a blank image file will be saved.

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