选择排序（LOW）
# _*_coding:utf-8_*_
def select_sort(li):
for i in range(len(li)-1): # i是第几趟
min_loc = i
for j in range(i+1, len(li)):
if li[j] < li[min_loc]:
min_loc = j
li[i], li[min_loc] = li[min_loc], li[i]
print(li)
li = [3,4,2,1,5,6,8,7,9]
print(li)
select_sort(li)