IndexError：列表赋值索引超出范围（Matplotlib）

Question

所以我的想法是在底部创建类似的标签，它是“第 1 天、第 2 天、第 3 天......”我想也许我可以在一个范围内做而不是写单独的标签，但我尝试了单独的标签方法并说出错误（见图1），整个代码在（图2）它引发的错误（图 1）Traceback (most recent call last):  File "C:/Users/willi/AppData/Local/Programs/Python/Python38-32/kjhj.py", line 20, in <module>    labels[6] = 'Day 5'IndexError: list assignment index out of range这是代码：（图2）from numpy import *import mathimport matplotlib.pyplot as pltimport matplotlib.patches as mpatchesfig, ax = plt.subplots()a = [20, 40, 60, 78, 90, 120, 220, 300, 400]b = [40, 80, 90, 200, 400, 500, 600, 780, 900]orange_patch = mpatches.Patch(color='orange', label='Orange Label')plt.legend(handles=[orange_patch])fig.canvas.draw()labels = [item.get_text() for item in ax.get_xticklabels()]labels[1] = 'Day 0'labels[2] = 'Day 1'labels[3] = 'Day 2'labels[4] = 'Day 3'labels[5] = 'Day 4'labels[6] = 'Day 5'ax.set_xticklabels(labels)plt.plot(a)plt.plot(b)plt.show()非常感激！

Answer 1

Python 中的索引从 0 而不是 1 开始。如果您这样替换代码，它应该可以工作：

labels[0] = 'Day 0'

labels[1] = 'Day 1'

labels[2] = 'Day 2'

labels[3] = 'Day 3'

labels[4] = 'Day 4'

labels[5] = 'Day 5'