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HashMap与HashTable联系与区别
HashMap与HashTable1.hashMap去掉了HashTable 的contains方法,但是加上了containsValue()和containsKey()方法。2.hashTable同步的,而HashMap是非同步的,效率上比hashTable要高,HashMap不是线程安全的 ,H...
分类:其他好文   时间:2014-06-16 10:08:43    阅读次数:182
Linq 常用语句
1、infrom p in 信息where (new string[] {"10","14"}).Contains(p.编码)select p2、not infrom p in 信息where !(new string[] {"10","14"}).Contains(p.编码)select p
分类:其他好文   时间:2014-06-13 19:39:29    阅读次数:251
如何判断NSDictionary是否包含某个键
方法一:if([[dictionary allKeys] containsObject:key){ // contains key} 方法二:if([dictionary objectForKey:key]){ //objectForKey will return nil if a key d...
分类:其他好文   时间:2014-06-13 17:29:04    阅读次数:241
The Variant Call Format
VCF is a text format. It contains meta-information lines, a header line, and then data lines each containing information about a posittion in the geno...
分类:其他好文   时间:2014-06-10 11:35:34    阅读次数:771
boot/head.S
/* * linux/boot/head.S * * Copyright (C) 1991, 1992 Linus Torvalds *//* * head.S contains the 32-bit startup code. */.text.globl _idt,_gdt,.globl ...
分类:其他好文   时间:2014-06-06 15:11:14    阅读次数:417
Tutorial – Kithara RTS
Tutorial The Kithara ?RealTime Suite? (KRTS) is a real-time extension for Windows, which currently contains more than 20 different functional modules....
分类:其他好文   时间:2014-06-06 10:38:26    阅读次数:748
pdf2swf 转换时报错。This file is too complex to render- SWF only supports 65536 shapes at once
在使用swftools转换pdf 到swf的时候报错,有如下说明:if the pdf contains too many images / shapes, pdf2swf will fail with this error :ERROR Thisfileistoocomplextorender-S...
分类:其他好文   时间:2014-06-05 21:24:54    阅读次数:310
EFsql笔记
like的语法string[] cities = { "London", "Madrid" };IQueryable custs = db.Customers.Where(c => cities.Contains(c.City));Contains(),包含,完全匹配,非Likein的语法publi...
分类:数据库   时间:2014-06-05 18:27:42    阅读次数:324
设计模式总结篇系列:组合模式(Composite)
在探讨Java组合模式之前,先要明白几个概念的区别:继承、组合和聚合。继承是is-a的关系。组合和聚合有点像,有些书上没有作区分,都称之为has-a,有些书上对其进行了较为严格区分,组合是contains-a关系,聚合是has-a关系。组合方式中被组合的对象生命周期不能超过整体,一般写代码时是直接在...
分类:其他好文   时间:2014-06-02 12:52:24    阅读次数:224
LeetCode: Validate Binary Search Tree [098]
【题目】 Given a binary tree, determine if it is a valid binary search tree (BST). Assume a BST is defined as follows: The left subtree of a node contains only nodes with keys less than the node's key. The right subtree of a node contains only nodes with ke...
分类:其他好文   时间:2014-06-02 10:29:55    阅读次数:257
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