摘要:
1 直接创建 dict = {'name':'earth', 'port':'80'} 2 工厂方法 items=[('name','earth'),('port','80')] dict2=dict(items) dict1=dict((['name','earth'],['port','80'] 阅读全文
摘要:
1->2->3->4 转换成 2->1->4->3 class ListNode: def __init__(self, x): self.val = x self.next = None class Solution: # @param a ListNode # @return a ListNod 阅读全文
摘要:
1.用集合 2.list(set(l)) 用字典 l1 = ['b','c','d','b','c','a','a'] l2 = {}.fromkeys(l1).keys() print l2 3.用字典并保持顺序l1 = ['b','c','d','b','c','a','a'] l2 = lis 阅读全文