Python绘图

    import numpy as np
    import pandas as pd
    import matplotlib.pyplot as plt
    import warnings; warnings.filterwarnings(action='once')
    
    # Import Data
    df = pd.read_csv('international-airline-passengers.csv')
    
    # Draw Plot
    plt.figure(figsize=(16,10), dpi= 80)
    plt.plot('date', 'traffic', data=df, color='tab:red')
    
    # Decoration
    plt.ylim(50, 750)
    xtick_location = df.index.tolist()[::12]
    xtick_labels = [x[-4:] for x in df.date.tolist()[::12]]
    plt.xticks(ticks=xtick_location, labels=xtick_labels, rotation=0, fontsize=12, horizontalalignme