自相关检验（含ACF图）

def solve():
    import pandas as pd
    import statsmodels.api as sm
    import matplotlib.pyplot as plt
    from statsmodels.stats.diagnostic import acorr_ljungbox
    from statsmodels.graphics.tsaplots import plot_acf
    
    df = pd.read_csv(____)
    X = sm.add_constant(____)
    model = sm.OLS(____).fit()
    
    plt.figure(figsize=(____,____))
    plot_acf(____)
    plt.title(____)
    plt.tight_layout()
    plt.show()
    
    lb_test = acorr_ljungbox(____)
    print(____)