LeetCode-83-Remove Duplicates from Sorted List 链表水题

# Definition for singly-linked list.# class ListNode(object):#     def __init__(self, x):#         self.val = x#         self.next = Noneclass Solution(object):    def deleteDuplicates(self, head):        """        :type head: ListNode        :rtype: ListNode        """        if head==None:return None        ans=head        while(head.next!=None):            if head.next.val==head.val:                head.next=head.next.next            else:                head=head.next        return ans