python冒泡排序并绘图展示

冒泡排序

输出结果：

冒泡排序：
[3, 2, 9, 7, 1, 6]
[2, 3, 9, 7, 1, 6]
[2, 3, 9, 7, 1, 6]
[2, 3, 7, 9, 1, 6]
[2, 3, 7, 9, 1, 6]
[2, 3, 7, 1, 9, 6]
[2, 3, 7, 1, 9, 6]
[2, 3, 7, 1, 6, 9]
[2, 3, 7, 1, 6, 9]
[2, 3, 1, 7, 6, 9]
[2, 3, 1, 7, 6, 9]
[2, 3, 1, 6, 7, 9]
[2, 3, 1, 6, 7, 9]
[2, 1, 3, 6, 7, 9]
[2, 1, 3, 6, 7, 9]
[1, 2, 3, 6, 7, 9]

程序

import matplotlib.pyplot as plt
plt.rcParams['font.sans-serif']=['SimHei']
plt.rcParams['axes.unicode_minus']=False

def bubble_sort(a):
    print('冒泡排序：')
    plt.figure()
    plt.style.use('ggplot')
    plt.ion()   #开启交互模式
    draw(a)
    for i in range(1,len(a)):
        for j in range(0,len(a)-i):
            if a[j]>a[j+1]:
                print(a)
                draw(a,j)
                a[j],a[j+1]=a[j+1],a[j]
                print(a)
                draw(a,j)
    draw(a)
    plt.ioff()  #关闭交互模式
    plt.show()

def draw(a,j=None):
    plt.cla()   #清屏
    x=plt.bar(range(1,len(a)+1),a,width=0.5,color='steelblue')
    if j!=None:
        x[j].set_color('indianred')
        x[j+1].set_color('indianred')
    for m,n in zip(range(1,len(a)+1),a):
        plt.text(m,n,n,ha='center',va='bottom',fontsize=14,color='black')   #柱状图上方显示数值
    plt.xticks(())  #不显示x轴
    plt.yticks(())  #不显示y轴
    plt.title('冒泡排序')
    plt.pause(2)    #每次图形变动都停两秒

if __name__=='__main__':
    a=[3,2,9,7,1,6]
    bubble_sort(a)