零、前言
工作中要用到生成图片,最开始使用Qt实现,金主觉得low,卧槽!没办法,就自学Python,使用Python的图片生成库matplotlib,不得不说这库确实很强大!
一、matplotlib安装
1、安装指令:
pip3 install -U matplotlib
2、安装完成的提示如下:
二、终端测试
三、代码测试
(这里直接使用官方给的样例:https://matplotlib.org/gallery/lines_bars_and_markers/barchart.html#sphx-glr-gallery-lines-bars-and-markers-barchart-py)
1、代码:
import numpy as np
import matplotlib.pyplot as plt
men_means, men_std = (20, 35, 30, 35, 27), (2, 3, 4, 1, 2)
women_means, women_std = (25, 32, 34, 20, 25), (3, 5, 2, 3, 3)
ind = np.arange(len(men_means)) # the x locations for the groups
width = 0.35 # the width of the bars
fig, ax = plt.subplots()
rects1 =