Python-排序

来源：互联网发布：造价数据库编辑：程序博客网时间：2024/06/05 00:19

选择排序：

def selectSort(l):    size = len(l)    for i in range(0,size):        max = l[i]        index = i        for j in range(i,size):            if l[j] > max:                max = l[j]                index = j        temp = l[i]        l[i] = max        l[index] = temp        print(l)

执行结果：

>>> s = [5,8,55,3,9,3,6,5,2]>>> selectSort(s)[55, 8, 5, 3, 9, 3, 6, 5, 2][55, 9, 5, 3, 8, 3, 6, 5, 2][55, 9, 8, 3, 5, 3, 6, 5, 2][55, 9, 8, 6, 5, 3, 3, 5, 2][55, 9, 8, 6, 5, 3, 3, 5, 2][55, 9, 8, 6, 5, 5, 3, 3, 2][55, 9, 8, 6, 5, 5, 3, 3, 2][55, 9, 8, 6, 5, 5, 3, 3, 2][55, 9, 8, 6, 5, 5, 3, 3, 2]

插入排序：

def insertSort(l):    size = len(l)    for i in range(1,size):        fv = l[i]        j = i        while j >= 1:            if fv < l[j-1]:                l[j] = l[j-1]            else:                break            j = j - 1            l[j] = fv            print(l)

例子：

>>> l = [5,8,55,3,9,3,6,5,2]>>> insertSort(l)[5, 8, 55, 3, 9, 3, 6, 5, 2][5, 8, 55, 3, 9, 3, 6, 5, 2][3, 5, 8, 55, 9, 3, 6, 5, 2][3, 5, 8, 9, 55, 3, 6, 5, 2][3, 3, 5, 8, 9, 55, 6, 5, 2][3, 3, 5, 6, 8, 9, 55, 5, 2][3, 3, 5, 5, 6, 8, 9, 55, 2][2, 3, 3, 5, 5, 6, 8, 9, 55]

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