#pandas示例
import pandas as pd
import matplotlib.pyplot as plt
df = pd.read_csv('stock_data.csv')
print(df.head())
plt.figure(figsize=(10, 6))
plt.plot(df['Date'], df['Close'])
plt.xlabel('Date')
plt.ylabel('Close Price')
plt.title('Stock Close Price')
plt.xticks(rotation=45)
plt.grid(True)
plt.show()
