面试题编程题10-python 删除列表中重复的项

 1 l=[2,1,3,5,5,3,2,1,0]
 2 l.sort()
 3 print(l)
 4 last=l[-1]
 5 #range起点：倒数第二个数字，终点：-1，步长-1
 6 for i in range(len(l)-2,-1,-1):
 7     if last==l[i]:
 8         del l[i]
 9     else:
10         last=l[i]
11 print(l)
12 
13 #方法2，
14 oldlist=[2,1,3,5,5,3,2,1,0]
15 newlist=[]
16 for i in oldlist:
17     if i not in newlist:
18         newlist.append(i)
19 print(newlist)