如何删除饼图上的标签

import matplotlib.pyplot as plt

# 示例数据
data = [30, 20, 50]
labels = ['A', 'B', 'C']

# 创建饼图
fig, ax = plt.subplots()
ax.pie(data, labels=labels)

# 删除标签
ax.set_ylabel('')  # 删除y轴标签
for text in ax.texts:
    text.set_visible(False)  # 删除数据标签

plt.show()

library(ggplot2)

# 示例数据
data <- data.frame(category = c('A', 'B', 'C'), value = c(30, 20, 50))

# 创建饼图
p <- ggplot(data, aes(x = "", y = value, fill = category)) +
  geom_bar(stat = "identity", width = 1) +
  coord_polar("y", start = 0)

# 删除标签
p <- p + theme(axis.text = element_blank(), axis.title = element_blank())

print(p)