如何在python中更改ytick标签？

import matplotlib.pyplot as plt

fig, ax = plt.subplots()

# 假设有一些数据
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]

# 绘制柱状图
ax.bar(x, y)

# 获取当前的ytick标签
yticks = ax.get_yticks()

# 创建新的ytick标签
new_yticks = ['A', 'B', 'C', 'D', 'E']

# 设置新的ytick标签
ax.set_yticklabels(new_yticks)

import matplotlib.pyplot as plt

# 创建图表对象
fig, ax = plt.subplots()

# 假设有一些数据
x = [1, 2, 3, 4, 5]
y = [10, 20, 30, 40, 50]

# 绘制柱状图
ax.bar(x, y)

# 获取当前的ytick标签
yticks = ax.get_yticks()

# 创建新的ytick标签
new_yticks = ['A', 'B', 'C', 'D', 'E']

# 设置新的ytick标签
ax.set_yticklabels(new_yticks)

# 显示图表
plt.show()