python数据可视化

这样写：

import matplotlib.pyplot as plt
import pandas as pd
import numpy as np
import seaborn as sns
plt.figure(figsize=(10, 8))

plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['axes.unicode_minus'] = False
df = pd.read_csv('tips.csv')
sns.boxplot(x='天数', y='小费', data=df)
plt.show()