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在这里,在值插入一个链接是这样一个问题:蟒蛇:给定索引
def insert(link, value, index):
"""Insert a value into a Link at the given index.
>>> link = Link(1, Link(2, Link(3)))
>>> insert(link, 9001, 0)
>>> link
Link(9001, Link(1, Link(2, Link(3))))
>>> insert(link, 100, 2)
>>> link
Link(9001, Link(1, Link(100, Link(2, Link(3)))))
>>> insert(link, 4, 5)
Index out of bounds
"""
"*** YOUR CODE HERE ***"
我写下这不能很好地工作是:
i = 0
link_new = link(link.first)
while link.rest != Link.empty and i < index:
link_new = link.rest
i += 1
if i == index:
link_new.first = value
link_new.rest = link.first, link.rest
else:
print ("Index out of bounds")
请帮我要解决这个问题!
你能解释一下多一点你有什么目标,这个程序应该如何表现? – mpm 2014-10-21 23:22:50
Link对象的外观如何? – user3885927 2014-10-21 23:24:33