import matplotlib.pyplot as plt
import seaborn as sns
show_sz = show_data[show_data.show_city == '深圳'] # show_data为dataFrame
city_counts = show_data['show_city'].value_counts() #city_counts为Series
city_counts[:10] #输出如下
plt.tick_params(labelsize=7) #设置刻度值的字体
sub_set = city_counts[:20] # 获取city_counts前20个数据
sns.barplot(y = sub_set.index,x = sub_set.values) # 绘制柱状图如下
