python 冒泡排序算法

 

a = [9,7,3,6,5,4,1,0,2,8]

for k in range(len(a)):
    tag = True
    for i in a[0:-1]:
        # print(a.index(i),'',a[a.index(i)])
        if (a[a.index(i)] > a[a.index(i) + 1]):
            temp = a[a.index(i) + 1]
            a[a.index(i) + 1] = a[a.index(i)]
            a[a.index(i)] = temp
            tag=False
    if tag:
        print("排序完成!")
        print(a)
        break