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建造者模式
定义:将一个复杂对象的构造与它的表示分离,使同样的构建过程可以创建不同的表示,这样的设计模式被称为建造者模式。 (separate the construction of a complex object from its representation so that the same construction process can create different representation...
分类:其他好文   时间:2015-04-23 00:02:43    阅读次数:165
LeetCode OJ Happy Number
Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares...
分类:移动开发   时间:2015-04-22 22:20:40    阅读次数:137
[LeetCode]202.Happy Number
Write an algorithm to determine if a number is “happy”.A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of...
分类:移动开发   时间:2015-04-22 22:15:41    阅读次数:1099
android application对象多次实例化
android application 这个对象可能会被多次实例化, 这种情况在使用android:process元素的时候就会出现.其根本的原因是新开启的进程需要一个application对象服务4大组件. 下面给出一段获得当前进程的名称的代码, 通过它, 就可以判断是否运行在主进程了。/...
分类:移动开发   时间:2015-04-22 22:04:19    阅读次数:147
LeetCode【202】Happy Number
Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integer...
分类:移动开发   时间:2015-04-22 20:29:42    阅读次数:170
Happy number
题目描述 Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the...
分类:移动开发   时间:2015-04-22 18:40:10    阅读次数:136
Leetcode15: Happy Number
Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares...
分类:移动开发   时间:2015-04-22 18:14:05    阅读次数:109
Linux环境下Oracle数据泵(expdp)备份报ORA-39006: internal error
问题描述:         Oracle一直用数据泵备份,今天在终端备份时突然报ORA-39006: internal error错误。 数据泵导出日志文件为以下信息: ORA-39097: Data Pump job encountered unexpected error -31644 ORA-39065: unexpected master process exception in F...
分类:数据库   时间:2015-04-22 18:13:28    阅读次数:222
python 系统编程之创建进程 create process
一、forking 进程通过fork产生的进程有以下几个特点: 是一个进程的克隆。 创建的进程独立于父进程单独存在。 线程在调用fork()那那点被复制执行。 在子线程中返回0。 在父线程中返回子线程的pid 子线程的PID不同于父线程。 二、代码示例#!/usr/bin/env pythonimport osdef child_process(): print "I am the chi...
分类:编程语言   时间:2015-04-22 14:02:16    阅读次数:198
leetcode: Happy Number
题意: Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of th...
分类:移动开发   时间:2015-04-22 13:56:15    阅读次数:155
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