python 冒泡排序

#!/usr/bin/python3
import random

# 创建无序的列表
def randomList(n):
    iList = []
    for i in range(n):
        iList.append(random.randrange(1000))
    return  iList

iList = randomList(20)

def bubbleSort(iList):
    print(iList)

    if len(iList) <= 1:
        return iList

    for i in range(len(iList)):
        for j in range(0,len(iList)-1):
            if iList[j] >= iList[j+1]:
                iList[j],iList[j+1] = iList[j+1],iList[j] # 交换位置
        print('第 ' + str(i+1) + ' 次 ' ,end="")
        print(iList)
    return iList

if __name__ == "__main__":
    bubbleSort(iList)