1.什么是Servlet A Java servlet is a Java programming language program that extends the capabilities of a server. Although servlets can respond to any typ...
分类：
Web程序 时间：
2015-06-09 23:29:43
阅读次数：
181
Find all possible combinations of k numbers that add up to a number n, given that only numbers from 1 to 9 can be used and each combination should be ...
分类：
编程语言 时间：
2015-06-09 23:16:23
阅读次数：
144
Alice and Bob are playing a game with marbles; you may have played this game in childhood. The game is playing by alternating turns. In each turn a player can take exactly one or two marbles.Both Alice...
分类：
其他好文 时间：
2015-06-09 22:05:33
阅读次数：
166
Given two numbers represented as strings, return multiplication of the numbers as a string.Note: The numbers can be arbitrarily large and are non-nega...
分类：
其他好文 时间：
2015-06-09 21:51:52
阅读次数：
86
Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can f...
分类：
编程语言 时间：
2015-06-09 21:40:38
阅读次数：
1582
Design a data structure that supports the following two operations:void addWord(word)bool search(word)search(word) can search a literal word or a regu...
分类：
编程语言 时间：
2015-06-09 21:33:13
阅读次数：
144
错误状况最近项目SVN每次更新项目都会出现Can’t open file ‘项目目录/.svn/tmp/text-base/xxx.xml.svn-base’类似的错误，同时导致项目目录被Locked，只有执行clean up才能进行解锁。同时，针对单个文件或文件夹的更新操作却没有问题。其中错误信息中“xxx.xml”文件为导致错误的文件。原因分析及查找：
1、浏览SVN资源库，查看出错的xxx....
分类：
其他好文 时间：
2015-06-09 20:10:28
阅读次数：
145
从官网上下载PyQt的源码：
http://www.riverbankcomputing.com/software/pyqt/
官网上说：“Before you can build PyQt4 you must have already built and installed
SIP” 意思是说必须先安装SIP，于是也下载了SIP。
解压SIP压缩包，进入源码目录，打开READM...
分类：
系统相关 时间：
2015-06-09 20:08:03
阅读次数：
359
在coredata 数据库结构被更改后，没根据要求立即建立新version，而是在原version上进行了小修改，之后才想起来建立新版本。并通过以下代码合并数据库， NSError *error = nil; NSDictionary *options = [NSDictionary dict...
分类：
移动开发 时间：
2015-06-09 19:46:02
阅读次数：
255
题目链接 题目要求 You are climbing a stair case. It takesnsteps to reach to the top. Each time you can either climb 1 or 2 steps. In how many distinct wa...
分类：
其他好文 时间：
2015-06-09 19:35:32
阅读次数：
99
