设计模式总结(3)==========================================singleton pattern单件模式:确保一个类只有一个实例,并提供一个全局访问点。线程安全:同步getInstance方法:public synchronized static Single...
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其他好文 时间:
2014-06-28 16:31:15
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299
BACKGROUNDA single physical platform may be segregated into a plurality of virtual networks. Here, the physical platform incorporates at least one vir...
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移动开发 时间:
2014-06-28 14:46:39
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330
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
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其他好文 时间:
2014-06-28 14:31:12
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201
Given an array of integers, every element appears three times except for one. Find that single one.Note:Your algorithm should have a linear runtime co...
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其他好文 时间:
2014-06-28 13:44:09
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188
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
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其他好文 时间:
2014-06-28 10:45:34
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225
1、单一职责原则的核心思想 一个类应该有且只有一个变化的原因。 2、为什么要引入单一职责原则 单一职责原则将不同的职责分离到单独的类,每一个职责都是一个变化的中心。当需求变化时,这个变化将通过更改职责相关的类来体现。如果一个类拥有多于一个的职责,则这些职责就耦合到在了一起,那么就会有多于一...
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其他好文 时间:
2014-06-26 00:48:00
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241
Bonding is aggregation multiple links to single link in order to increase throughput and achieve redundancy in case one of links fails. At least, offi...
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其他好文 时间:
2014-06-24 10:28:42
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211
模式匹配的实现,'?'代表单一字符,'*'代表任意多的字符,写代码实现两个字符串是否匹配。
Implement wildcard pattern matching with support for '?' and '*'.、
'?' Matches any single character.
'*' Matches any sequence of characters (inclu...
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其他好文 时间:
2014-06-22 16:40:44
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225
Football
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 2769
Accepted: 1413
Description
Consider a single-elimination football tournament involving 2n t...
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其他好文 时间:
2014-06-22 11:58:17
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270
通常情况下,创建数组,字典的时候需要写一些很长的方法名,今天就总结一下如何使用字面量语法代替这些方法。1、数值的创建 NSNumber *number1 = [NSNumber numberWithInt:1]; //传统方法 NSNumber *number2 = @1; ...
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其他好文 时间:
2014-06-20 18:21:18
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137