python--打印两个有序链表的公共部分

#! conding:utf-8
__author__ = "hotpot"
__date__ = "2017/10/30 8:48"


class Node(object):
    def __init__(self, val, next):
        self.val = val
        self.next = next


def print_common_part(node1,node2):
    while node1 and node2:
        if node1.val<node2.val:
            node1=node1.next
        elif node1.val>node2.val:
            node2 = node2.next
        else:
            print(node1.val)
            node1=node1.next
            node2 = node2.next
#! conding:utf-8
__author__ = "hotpot"
__da