#！usr/bin/env python
# -*- coding:utf-8 -*-
a=[33,2,7,1]
for i in range(len(a)-1):
if a[i] > a[i+1]:
temp=a[i]
a[i] = a[i+1]
a[i+1] = temp
# print(a)
for j in range(len(a)-2):
if a[j] > a[j+1]:
temp=a[j]
a[j] = a[j+1]
a[j+1] = temp
print(a)
原文：http://www.cnblogs.com/ezway/p/6371319.html