移动平均预测

def solve():
    import pandas as pd
    import matplotlib.pyplot as plt
    url = '____'
    df = pd.read_csv(____).sort_values(____)
    df['____'] = df['____'].rolling(____).mean()
    df['____'] = df['____'].rolling(____).mean()
    plt.figure(figsize=(____,____))
    plt.plot(____)
    plt.plot(____)
    plt.plot(____)
    plt.legend(); plt.title(____); plt.tight_layout(); plt.show()
    print(____)