绘制累积分布函数(CDF)

def solve():
    from sklearn.datasets import load_iris
    import matplotlib.pyplot as plt
    import numpy as np
    iris = load_iris()
    sepal_length = iris.data[:, ____]
    sorted_data = np.sort(____)
    cdf = np.arange(____, len(____)+____) / len(____)
    plt.figure(figsize=(____, ____))
    plt.plot(____)
    plt.xlabel(____)
    plt.ylabel(____)
    plt.title(____)
    plt.grid(____)
    plt.show()