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python 作用域
python能够改变变量作用域的代码段是def、class、lamda. (模块,类以及函数才会引入新的作用域)if/elif/else、try/except/finally、for/while 并不能涉及变量作用域的更改,也就是说他们的代码块中的变量,在外部也是可以访问的变量搜索路径是:本地变量-...
分类:编程语言   时间:2015-09-02 01:53:51    阅读次数:213
(leetcode)Product of Array Except Self
Given an array ofnintegers wheren> 1,nums, return an arrayoutputsuch thatoutput[i]is equal to the product of all the elements ofnumsexceptnums[i].Solv...
分类:其他好文   时间:2015-09-01 12:34:37    阅读次数:281
[LeetCode#238]Product of Array Except Self
Problem:Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product of all the elements of nums...
分类:其他好文   时间:2015-09-01 12:11:54    阅读次数:155
magento search except word
1.DB add field ‘except‘ - ‘catalogsearch_query‘ 2.app\code\core\Mage\Adminhtml\Block\Catalog\Search\Edit\Form.php add field // feng $fieldset->addField(‘except‘, ‘text‘, array( ‘name‘ => ‘except...
分类:其他好文   时间:2015-08-31 17:46:44    阅读次数:134
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version
1、错误描述org.hibernate.exception.SQLGrammarException: error executing work at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:80) at org.hibernate.except...
分类:数据库   时间:2015-08-30 23:09:26    阅读次数:428
LeetCode-Count Complete Tree Nodes
Given a complete binary tree, count the number of nodes. Definition of a complete binary tree from Wikipedia: In a complete binary tree every level, except possibly the last, is completely filled,...
分类:其他好文   时间:2015-08-30 14:25:12    阅读次数:165
UVA-1533 Moving Pegs (BFS+位压缩)
DescriptionVenture MFG Company, Inc. has made a game board. This game board has 15 holes and these holes are filled with pegs except one hole. A peg c...
分类:其他好文   时间:2015-08-29 21:28:27    阅读次数:346
<PY>计算信息熵
#python3 calculate Shannon Entropy from math import log2 def calcShannonEnt(dataSet): length,dataDict=float(len(dataSet)),{} for data in dataSet: try:dataDict[data]+=1 except:...
分类:其他好文   时间:2015-08-29 20:21:06    阅读次数:392
Delete Node in a Linked List
Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.Supposed the linked list is1 -> 2 -> 3 -> ...
分类:其他好文   时间:2015-08-29 06:17:33    阅读次数:150
[LeetCode] 238 - Product of Array Except Self
Given an array ofnintegers wheren> 1,nums, return an arrayoutputsuch thatoutput[i]is equal to the product of all the elements ofnumsexceptnums[i].Solv...
分类:其他好文   时间:2015-08-28 12:53:23    阅读次数:145
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