导入相关模块
import matplotlib.pyplot as plt
import numpy as np
准备数据
x = np.linspace(0, 50)
y = [i ** 2 for i in x]
plt.figure()
plt.plot(x, y)
plt.show()
修改x轴刻度
new_tick = np.array([i for i in range(21)])
plt.xticks(new_tick) #带替换的x轴刻度
plt.yticks(np.linspace(0, 400, 9), #带替换的y轴刻度和展示
['level1', 'level2','level3','level4','level5','level6','level7','level8','level9'])
plt.show()