请写出一段Python代码实现删除一个list里面的重复元素？

方法1：使用set函数 

s=set(list)，然后再list(s)

方法2：append   

 def delList(L):
     L1 = []
     for i in L:
         if i not in L1:
             L1.append(i)
     return L1    

 print(delList([1,2,2,3,3,4,5]))
 print(delList([1,8,8,3,9,3,3,3,3,3,6,3]))

方法3：count,remove   

 def delList(L):
     for i in L:
         if L.count(i) != 1:
             for x in range((L.count(i)-1)):
                 L.remove(i)
     return L

 print(delList([1,2,2,3,3,4,5]))
 print(delList([1,8,8,3,9,3,3,3,3,3,6,3]))