import matplotlib.pyplot as plt import numpy as np # 绘制普通图像 x = np.linspace(-1, 1, 50) y1 = 2 * x + 1 y2 = x**2 plt.figure() plt.plot(x, y1) plt.plot(x, y2, color = 'red', linewidth = 1.0, linestyle = '--') # 设置坐标轴的取值范围 plt.xlim((-1, 1)) plt.ylim((0, 2)) # 设置坐标轴的lable plt.xlabel('X axis') plt.ylabel('Y axis') # 设置x坐标轴刻度, 原来为0.25, 修改后为0.5 plt.xticks(np.linspace(-1, 1, 5)) # 设置y坐标轴刻度及标签, $$是设置字体 plt.yticks([0, 0.5], ['$minimum$', 'normal']) # 获取当前的坐标轴, gca = get current axis ax = plt.gca() # 设置右边框和上边框 ax.spines['right'].set_color('none') ax.spines['top'].set_color('none') # 设置x坐标轴为下边框 ax.xaxis.set_ticks_position('bottom') # 设置y坐标轴为左边框 ax.yaxis.set_ticks_position('left') # 设置x轴, y周在(0, 0)的位置 ax.spines['bottom'].set_position(('data', 0)) ax.spines['left'].set_position(('data', 0)) plt.show() --------------------- 作者：SnailTyan 来源：CSDN 原文：https://blog.csdn.net/quincuntial/article/details/70946894 版权声明：本文为博主原创文章，转载请附上博文链接！
https://www.cnblogs.com/onemorepoint/p/7482644.html