用二维数组绘制直方图

def draw_histogram(data):
    # 计算每个数据的频率
    frequencies = [0] * len(data)
    for i in range(len(data)):
        frequencies[data[i]] += 1
    
    # 找到最大频率
    max_frequency = max(frequencies)
    
    # 绘制直方图
    for i in range(max_frequency, 0, -1):
        for j in range(len(frequencies)):
            if frequencies[j] >= i:
                print("*", end=" ")
            else:
                print(" ", end=" ")
        print()
    
    # 打印x轴标签
    for i in range(len(frequencies)):
        print("-", end=" ")
    print()
    for i in range(len(frequencies)):
        print(i, end=" ")