str1 = 'hello javatpoint' #string str1 str2 = 'how are you' #string str2 print (str1[0:2]) #printing first two character using slice operator print (str1[4]) #printing 4th character of the string print (str1*2) #printing the string twice print (str1 + str2) #printing the ...
print(s.get_last_node()) 我建议你先读一下链表,你似乎还不明白它们是如何完全结构化的https://www.javatpoint.com/singly-linked-list class Node:#this node class is used to represent a node in the linked list def __init__(self, data, next):# data is the data carried by the node, ne...