读取上次作业保存的酒店数据

df = pd.read_csv('hotel_data.csv')

获取地区酒店数量

hotel_count = df['地区'].value_counts()

绘制柱状图

fig, ax = plt.subplots() ax.bar(hotel_count.index, hotel_count.values, color='red') ax.set_title('每个地区酒店数量') ax.set_xlabel('地区') ax.set_ylabel('数量') plt.xticks(rotation=90)

在柱上方显示数值

for i, v in enumerate(hotel_count.values): ax.text(i, v+10, str(v), ha='center')

plt.show()